Space Traveller Log, Part 3 (P-Z)
All astronauts, cosmonauts and taikonauts in space
Last update: 24 March 2024
| Abbreviations | ASTP = Apollo-Soyuz Test Program | STS = Shuttle Transporter System | ISS = International Space Station | Pi = Pilot | MiSp = Mission Specialist (e.g. engineer, physician) |
| Note |
Suborbital spacecraft flights (Mercury MR-3 and MR-4) and inflight aborts (Soyuz 18A, Soyuz-T 10) of missions are counted. First time crew members in the Challenger catastrophe (C. McAuliffe, M. Smith) are listed as well, while Apollo 1 victim R. Chaffee is included for completeness, though not counted. Also not counted as space flights are purely suborbital tourist flights. All X-15 and SpaceShipOne test flights are recorded as suborbital astronaut wings flights, though. |
To select by family name, click a letter: A B C D E F G | H I J K L M N O | P Q R S T U V W X Y Z
| No. | Name | Year | Country | Total | Active service | Programme / | Space station(s) | Assignment / profession; |
|---|---|---|---|---|---|---|---|---|
| [first name (nickname) surname] | of birth | (nation) | flights | (from - to) | Spacecraft | visited | Remarks / mission events | |
| P | ↑ | |||||||
| Gennadi Padalka | 1958 | Russia | 5 | 1998 - | Soyuz-TM/-TMA | Mir; ISS | Pi & MiSp | |
| William Pailes | 1952 | USA | 1 | 1985 | STS | – | MiSp | |
| Scott Parazynski | 1961 | USA | 4 | 1994 - | STS | Mir; ISS | MiSp | |
| Ronald Parise † | 1951 | USA | 2 | 1990 - 1995 | STS | – | MiSp | |
| Robert Parker | 1936 | USA | 2 | 1983 - 1990 | STS | – | MiSp | |
| Luca Parmitano | 1976 | Italy | 2 | 2013 - | Soyuz-TMA/-MS | ISS | MiSp | |
| Mark Pathy | 1969 | Canada | 1 | 2022 | Dragon | ISS | MiSp; tourist | |
| Nicholas Patrick | 1964 | USA | 2 | 2006 - | STS | ISS | MiSp | |
| Viktor Patsayev † | 1933 | Russia | 1 | 1971 | Soyuz | Salyut 1 | Pi; first ever flight to a space station; Soyuz 11 crew died at landing due to loss of cabin atmosphere | |
| James Pawelczyk | 1960 | USA | 1 | 1998 | STS | – | MiSp | |
| Julie Payette | 1963 | Canada | 2 | 1999 - | STS | ISS | MiSp | |
| Gary Payton | 1948 | USA | 1 | 1985 | STS | – | MiSp | |
| Timothy Peake | 1972 | UK | 1 | 2015 - | Soyuz-TMA | ISS | MiSp | |
| Philippe Perrin | 1963 | France | 1 | 2002 | STS | ISS | MiSp | |
| Thomas Pesquet | 1978 | France | 2 | 2016 - | Soyuz-MS; Dragon | ISS | MiSp | |
| Dmitry Petelin | 1983 | Russia | 1 | 2022 - | Soyuz-MS | ISS | En | |
| Donald Peterson † | 1933 | USA | 1 | 1983 | STS | – | MiSp; first flight of space shuttle Challenger | |
| Donald Pettit | 1955 | USA | 3 | 2002 - | STS; Soyuz-TMA | ISS | MiSp | |
| John Phillips | 1951 | USA | 3 | 2001 - | STS; Soyuz-TMA | ISS | MiSp | |
| William Pogue † | 1930 | USA | 1 | 1973 - 1974 | Apollo/Skylab 4 | Skylab-1 | Pi; final long endurance Skylab-1 visit | |
| Alan Poindexter † | 1961 | USA | 2 | 2008 - 2012 | STS | ISS | Pi | |
| Mark Polansky | 1956 | USA | 3 | 2001 - | STS | ISS | Pi | |
| Aleksandr Polishchuk | 1953 | Russia | 1 | 1993 | Soyuz-TM | Mir | MiSp | |
| Valeri Polyakov † | 1942 | Russia | 2 | 1988 - 1995 | Soyuz-TM | Mir | MiSp; record holder for the longest single space mission | |
| Marcos Pontes | 1963 | Brazil | 1 | 2006 - | Soyuz-TMA | ISS | Pi | |
| Leonid Popov | 1945 | Ukraine | 3 | 1980 - 1982 | Soyuz; Soyuz-T | Salyut 6 & 7 | Pi | |
| Pavel Popovich † | 1930 | Ukraine | 2 | 1962 - 1974 | Vostok; Soyuz | – | Pi | |
| Charles Precourt | 1955 | USA | 4 | 1993 - | STS | Mir | Pi | |
| Sian Proctor | 1970 | USA | 1 | 2021 | Dragon | – | MiSp/Pi | |
| Sergey Prokopyev | 1975 | Russia | 2 | 2018 - | Soyuz-MS | ISS | Pi | |
| Dumitru Prunariu | 1952 | Rumania | 1 | 1981 | Soyuz | Salyut 6 | MiSp; ninth Interkosmos mission | |
| R | ↑ | |||||||
| Sergei Ryazansky | 1974 | Russia | 2 | 2013 - | Soyuz-TMA/-MS | ISS | MiSp | |
| Ilan Ramon † | 1954 | Israel | 1 | 2003 | STS | – | MiSp; died in shuttle Columbia re-entry accident (STS-107) | |
| William Readdy | 1952 | USA | 3 | 1992 - | STS | Mir | Pi | |
| Kenneth Reightler | 1951 | USA | 2 | 1991 - 1994 | STS | – | Pi | |
| James Reilly | 1954 | USA | 2 | 1998 - | STS | Mir; ISS | MiSp | |
| Garrett Reisman | 1968 | USA | 2 | 2008 - | STS | ISS | MiSp | |
| Thomas Reiter | 1958 | Germany | 2 | 1995 - | Soyuz-TM; STS | Mir; ISS | MiSp | |
| Vladimir Remek | 1948 | Czech Republic | 1 | 1978 | Soyuz | Salyut 6 | MiSp; first Interkosmos mission | |
| Judith Resnik † | 1949 | USA | 2 | 1984 - 1986 | STS | – | MiSp; died in shuttle Challenger explosion (STS 51-L) | |
| Sergei Revin | 1966 | Russia | 1 | 2012 - | Soyuz-TMA | ISS | En | |
| Richard (Dick) Richards | 1946 | USA | 5 | 1989 - 2001 | STS | ISS | Pi | |
| Sally Ride † | 1951 | USA | 2 | 1983 - 1984 | STS | – | MiSp; first female astronaut on the shuttle | |
| Stephen Robinson | 1955 | USA | 4 | 1997 - | STS | ISS | MiSp | |
| Roman Romanenko | 1971 | Russia | 2 | 2009 - | Soyuz-TMA | ISS | Pi/MiSp | |
| Yuri Romanenko | 1944 | Russia | 3 | 1977 - 1987 | Soyuz; Soyuz-TM | Salyut 6; Mir | Pi | |
| Kent Rominger | 1956 | USA | 5 | 1995 - | STS | ISS | Pi | |
| Stuart Roosa † | 1933 | USA | 1 | 1971 | Apollo | – | Pi | |
| Jerry Ross | 1948 | USA | 7 | 1985 - | STS | Mir; ISS | MiSp | |
| Valeri Rozhdestvensky † | 1939 | Russia | 1 | 1976 | Soyuz | – | MiSp | |
| Francisco Rubio | 1975 | USA | 1 | 2022 - | Soyuz-MS | ISS | MiSp | |
| Kathleen Rubins | 1978 | USA | 2 | 2016 - | Soyuz-MS | ISS | MiSp | |
| Nikolai Rukavishnikov † | 1932 | Russia | 3 | 1971 - 1979 | Soyuz; ASTP | Salyut 1 & 6 | MiSp | |
| Mario Runco | 1952 | USA | 3 | 1991 - | STS | – | MiSp | |
| Valeri Ryumin | 1939 | Russia | 4 | 1977 - 1998 | Soyuz; STS | Salyut 6 | MiSp | |
| Sergey Ryzhikov | 1974 | Russia | 2 | 2016 - | Soyuz-MS | ISS | Pi | |
| S | ↑ | |||||||
| Albert Sacco | 1949 | USA | 1 | 1995 | STS | – | MiSp | |
| David Saint-Jacques | 1970 | Canada | 1 | 2018 - | Soyuz-MS | ISS | MiSp | |
| Aleksandr Samokutyayev | 1970 | Russia | 2 | 2011 - | Soyuz-TMA | ISS | Pi | |
| Gennadi Sarafanov † | 1942 | Russia | 1 | 1974 | Soyuz | – | Pi | |
| Robert Satcher | 1965 | USA | 1 | 2009 - | STS | ISS | MiSp | |
| Viktor Savinykh | 1940 | Russia | 3 | 1981 - 1988 | Soyuz-T/-TM | Salyut 6 & 7; Mir | MiSp | |
| Svetlana Savitskaya | 1948 | Russia | 2 | 1982 - 1984 | Soyuz-T | Salyut 7 | MiSp | |
| Walter Schirra † | 1923 | USA | 3 | 1962 - 1968 | Mercury; Gemini; Apollo | – | Pi; only astronaut to fly all three US capsules | |
| Hans Wilhelm Schlegel | 1951 | Germany | 2 | 1993 | STS | ISS | MiSp | |
| Harrison (Jack) Schmitt | 1935 | USA | 1 | 1972 | Apollo | – | MiSp; final moon landing; the only scientist (geologist) to put his foot on the moon | |
| Russell Schweickart | 1935 | USA | 1 | 1969 | Apollo | – | Pi | |
| Francis Scobee † | 1939 | USA | 2 | 1984 - 1986 | STS | – | Pi; died in shuttle Challenger explosion (STS 51-L) | |
| David Scott | 1932 | USA | 3 | 1966 - 1971 | Gemini; Apollo | – | Pi | |
| Winston Scott | 1950 | USA | 2 | 1996 - 1997 | STS | – | MiSp | |
| Paul Scully-Power | 1944 | USA | 1 | 1984 | STS | – | MiSp | |
| Richard Searfoss | 1956 | USA | 3 | 1993 - 1998 | STS | Mir | Pi | |
| Margaret Seddon | 1947 | USA | 3 | 1985 - 1993 | STS | – | MiSp | |
| Ronald Sega | 1952 | USA | 2 | 1994 - 1996 | STS | Mir | MiSp | |
| Piers Sellers † | 1955 | USA | 3 | 2002 - | STS | ISS | MiSp | |
| Christopher Sembroski | 1979 | USA | 1 | 2021 | Dragon | – | MiSp | |
| Aleksandr Serebrov | 1944 | Russia | 4 | 1982 - 1994 | Soyuz-T/-TM | Salyut 7; Mir | MiSp | |
| Yelena Serova | 1976 | Russia | 1 | 2014 - | Soyuz-TMA | ISS | MiSp | |
| Vitali Sevastyanov † | 1935 | Russia | 2 | 1970 - 1975 | Soyuz; Salyut 4 | – | MiSp | |
| Yuri Shargin | 1960 | Russia | 1 | 2004 - | Soyuz-TMA | ISS | MiSp | |
| Saliszan Sharipov | 1964 | Uzbekhistan | 2 | 1998 - | STS; Soyuz-TMA | ISS | MiSp | |
| Rakesh Sharma | 1949 | India | 1 | 1984 | Soyuz-T | Salyut 7 | MiSp | |
| Helen Sharman | 1963 | UK | 1 | 1991 | Soyuz-TM | Mir | MiSp; first British female cosmonaut in space | |
| Vladimir Shatalov | 1927 | Russia | 3 | 1969 - 1971 | Soyuz | (Salyut 1) | Pi | |
| Brewster Shaw | 1945 | USA | 3 | 1983 - 1989 | STS | – | Pi | |
| Alan Shepard † | 1923 | USA | 2 | 1961 - 1971 | Mercury; Apollo | – | Pi; first American (suborbital) space flight | |
| William Shepherd | 1949 | USA | 4 | 1988 - 2001 | STS; Soyuz-TM | ISS | MiSp; first ISS Expedition Crew | |
| Anton Shkaplerov | 1972 | Ukraine | 3 | 2011 - | Soyuz-TMA/-MS | ISS | Pi | |
| John Shoffner | 1958 | USA | 1 | 2023 | Dragon | ISS | paying tourist | |
| Georgi Shonin † | 1935 | Russia | 1 | 1969 | Soyuz | – | Pi | |
| Loren Shriver | 1944 | USA | 3 | 1985 - 1992 | STS | – | Pi | |
| Mark Shuttleworth | 1973 | South Africa | 1 | 2002 | Soyuz-TM | ISS | MiSp; second (paying) tourist in Space | |
| Charles Simonyi | 1948 | USA | 2 | 2007 - 2009 | Soyuz-TMA | ISS | only Space tourist to fly twice | |
| Oleg Skripochka | 1969 | Russia | 3 | 2010 - | Soyuz-TMA/-MS | ISS | MiSp | |
| Aleksandr Skvortsov | 1966 | Russia | 3 | 2010 - | Soyuz-TMA/-MS | ISS | Pi | |
| Donald (Deke) Slayton † | 1924 | USA | 1 | 1975 | Apollo-ASTP | – | Pi | |
| Michael Smith † | 1945 | USA | 1 | 1986 | STS | – | Pi; died in shuttle Challenger explosion (STS 51-L) | |
| Steven Smith | 1958 | USA | 4 | 1994 - | STS | ISS | MiSp | |
| Anatoliy Solovyov | 1948 | Russia | 5 | 1988 - 1997 | Soyuz-TM; STS | Mir | Pi | |
| Vladimir Solovyov | 1946 | Russia | 2 | 1984 - 1986 | Soyuz-T | Salyut 7; Mir | MiSp | |
| Sherwood Spring | 1944 | USA | 1 | 1985 | STS | – | MiSp | |
| Robert Springer | 1942 | USA | 2 | 1989 - 1990 | STS | – | MiSp | |
| Thomas Stafford † | 1930 | USA | 4 | 1965 - 1975 | Gemini; Apollo; ASTP | – | Pi | |
| Heidemarie Stefanyshyn-Piper | 1963 | USA | 2 | 2006 - | STS | ISS | MiSp | |
| Robert Stewart | 1942 | USA | 2 | 1984 - 1985 | STS | – | MiSp | |
| Eytan Meir Stibbe | 1958 | Israel | 1 | 2022 | Dragon | ISS | MiSp; tourist | |
| Nicole Stott | 1962 | USA | 2 | 2009 - | STS | ISS | MiSp | |
| Gennadi Strekalov † | 1940 | Russia | 6 | 1980 - 1995 | Soyuz-T/-TM | Salyut 6 & 7; Mir | MiSp; Soyuz-T 10 crew saved by abort system after launch vehicle blew up on pad at Tyuratam | |
| Frederick Sturckow | 1961 | USA | 4 | 1998 - | STS | ISS | Pi | |
| Kathryn Sullivan | 1951 | USA | 3 | 1984 - 1992 | STS | – | MiSp | |
| Maksim Surayev | 1972 | Russia | 2 | 2009 - | Soyuz-TMA | ISS | Pi & MiSp | |
| Steven Swanson | 1960 | USA | 3 | 2007 - | STS; Soyuz-TMA | ISS | MiSp | |
| John (Jack) Swigert † | 1931 | USA | 1 | 1970 | Apollo | – | Pi; moon landing fails but Apollo 13 crew returns safely to Earth | |
| T | ↑ | |||||||
| Arnoldo Tamayo-Mendez | 1942 | Cuba | 1 | 1980 | Soyuz | Salyut 6 | MiSp; seventh Interkosmos mission | |
| Tang Hongbo | 1975 | China | 2 | 2021 - | Shenzhou | Tiangong; TSS | Pi | |
| Tang Shengjie | 1989 | China | 1 | 2023 - | Shenzhou | TSS | Pi | |
| Daniel Tani | 1961 | USA | 1 | 2001 - | STS | ISS | MiSp | |
| Joseph Tanner | 1950 | USA | 4 | 1994 - | STS | ISS | MiSp | |
| Yevgeni Tarelkin | 1974 | Russia | 1 | 2013 - | Soyuz-TMA | ISS | Pi | |
| Valentina Tereshkova | 1937 | Russia | 1 | 1963 | Vostok | – | Pi; first woman in space! | |
| Norman Thagard | 1943 | USA | 5 | 1983 - 1995 | STS; Soyuz-TM | Mir | MiSp | |
| Gerhard Thiele | 1953 | Germany | 1 | 2000 - | STS | – | MiSp | |
| Robert Thirsk | 1953 | Canada | 2 | 1996 | STS; Soyuz-TMA | ISS | MiSp | |
| Andrew Thomas | 1951 | USA | 4 | 1996 - | STS | Mir; ISS | MiSp | |
| Donald Thomas | 1955 | USA | 4 | 1994 - | STS | – | MiSp | |
| Kathryn Thornton | 1952 | USA | 4 | 1989 - 1995 | STS | – | MiSp | |
| William Thornton | 1929 | USA | 2 | 1983 - 1985 | STS | – | MiSp | |
| Pierre Thuot | 1955 | USA | 3 | 1990 - 1994 | STS | – | MiSp | |
| Scott D. Tingle | 1965 | USA | 1 | 2018 - | Soyuz-MS | ISS | MiSp | |
| Dennis Tito | 1940 | USA | 1 | 2000 | Soyuz-TM | ISS | first (paying) tourist in Space! | |
| Gherman Titov † | 1935 | Russia | 1 | 1961 | Vostok | – | Pi | |
| Vladimir Titov | 1947 | Russia | 5 | 1983 - 1997 | Soyuz-T/-TM; STS | Mir | Pi | |
| Michel Tognini | 1949 | France | 2 | 1992 - 1999 | Soyuz-TM; STS | – | MiSp | |
| Valeryi Tokarev | 1952 | Russia | 2 | 1999 - | STS; Soyuz-TMA | ISS | Pi | |
| Sergei Treshchev | 1958 | Russia | 1 | 2002 - | STS | ISS | MiSp | |
| Eugene Huu-Chau Trinh | 1950 | USA | 1 | 1992 | STS | – | MiSp | |
| Richard Truly † | 1937 | USA | 2 | 1981 - 1983 | STS | – | Pi; performed test glide flights with shuttle Enterprise (OV-101) | |
| Bjarni Tryggvason | 1945 | Canada | 1 | 1997 | STS | – | MiSp | |
| Vasili Tsibliyev | 1954 | Russia | 2 | 1993 - 1997 | Soyuz-TM | Mir | Pi | |
| Pham Tuan | 1947 | Vietnam | 1 | 1980 | Soyuz | Salyut 6 | MiSp; sixth Interkosmos mission | |
| Mikhail Tyurin | 1960 | Russia | 3 | 2001 - | STS | ISS | MiSp | |
| U | ↑ | |||||||
| Yuri Usachyov | 1957 | Russia | 4 | 1994 - 2001 | Soyuz-TM; STS | Mir; ISS | MiSp | |
| V | ↑ | |||||||
| Ivan Vagner | 1985 | Russia | 1 | 2020 - | Soyuz-MS | ISS | MiSp | |
| Lodewijk van den Berg | 1932 | USA | 1 | 1985 | STS | – | MiSp | |
| Mark Vande Hei | 1966 | USA | 1 | 2017 - | Soyuz-MS | ISS | MiSp | |
| James (Ox) van Hoften | 1944 | USA | 2 | 1984 - 1985 | STS | – | MiSp | |
| Marina Vasilevskaya | 1990 | Belarus | 1 | 2024 - | Soyuz-MS | ISS | MiSp | |
| Vladimir Vasyutin † | 1952 | Russia | 1 | 1985 | Soyuz-T | Salyut 7 | Pi | |
| Charles Veach † | 1944 | USA | 2 | 1991 - 1992 | STS | – | MiSp | |
| Franz Viehböck | 1960 | Austria | 1 | 1991 | Soyuz-TM | Mir | MiSp | |
| Aleksandr Viktorenko | 1947 | Russia | 4 | 1987 - 1995 | Soyuz-TM | Mir | Pi | |
| Walter Villadei | 1974 | Italy | 1 | 2024 - | Dragon | ISS | MiSp | |
| Pavel Vinogradov | 1953 | Russia | 3 | 1997 - | Soyuz-TM/-TMA | Mir; ISS | MiSp | |
| Terry Virts | 1967 | USA | 2 | 2010 - | STS | ISS | Pi | |
| Roberto Vittori | 1964 | Italy | 3 | 2002 - | Soyuz-TM/-TMA; STS | ISS | MiSp | |
| Igor Volk † | 1937 | Ukraine | 1 | 1984 | Soyuz-T | Salyut 7 | Pi | |
| Aleksandr Volkov | 1948 | Ukraine | 3 | 1985 - 1992 | Soyuz-T/-TM | Salyut 7; Mir | Pi | |
| Sergei Volkov | 1973 | Ukraine | 3 | 2008 - | Soyuz-TMA | ISS | Pi | |
| Vladislav Volkov † | 1935 | Russia | 2 | 1969 - 1971 | Soyuz | Salyut 1 | MiSp; first ever flight to a space station; Soyuz 11 crew died at landing due to loss of cabin atmosph. | |
| Boris Volynov | 1934 | Russia | 2 | 1969 - 1976 | Soyuz | – | Pi | |
| James Voss | 1949 | USA | 5 | 1991 - | STS | ISS | MiSp | |
| Janice Voss | 1956 | USA | 5 | 1993 - | STS | – | MiSp | |
| W | ↑ | |||||||
| Koichi Wakata | 1963 | Japan | 5 | 1996 - | STS; Soyuz-TMA; Dragon | ISS | MiSp | |
| Rex Walheim | 1962 | USA | 3 | 2002 - | STS | ISS | MiSp | |
| Charles Walker | 1948 | USA | 3 | 1984 - 1985 | STS | – | MiSp | |
| David Walker † | 1944 | USA | 4 | 1984 - 1995 | STS | – | Pi | |
| Shannon Walker | 1965 | USA | 2 | 2010 - | Soyuz-TMA; Dragon | ISS | MiSp | |
| Ulrich Walter | 1954 | Germany | 1 | 1993 | STS | – | MiSp | |
| Carl Walz | 1955 | USA | 4 | 1993 - | STS | Mir; ISS | MiSp | |
| Marcus Wandt | 1980 | Sweden | 1 | 2024 - | Dragon | ISS | MiSp | |
| Taylor Gun-Jin Wang | 1940 | USA | 1 | 1985 | STS | – | MiSp | |
| Jessica Watkins | 1988 | USA | 1 | 2022 - | Dragon | ISS | MiSp | |
| Wang Yaping | 1980 | China | 2 | 2013 - | Shenzhou | Tiangong 1 | MiSp | |
| Mary Weber | 1962 | USA | 2 | 1995 - 2000 | STS | ISS | MiSp | |
| Paul Weitz † | 1932 | USA | 2 | 1973 - 1983 | Apollo/Skylab 2; STS | Skylab-1 | Pi | |
| James Wetherbee | 1952 | USA | 6 | 1990 - 2002 | STS | Mir; ISS | Pi | |
| Douglas Wheelock | 1960 | USA | 2 | 2007 - | STS; Soyuz-TMA | ISS | MiSp | |
| Edward White † | 1930 | USA | 1 | 1965 - 1967 | Gemini; (Apollo) | – | Pi; died in Apollo 1 (AS-204) flash fire on launch pad | |
| Peggy Whitson | 1960 | USA | 4 | 2002 - | STS; Soyuz-TMA/-MS; Dragon | ISS | MiSp | |
| Terrence Wilcutt | 1949 | USA | 4 | 1994 - | STS | Mir; ISS | Pi | |
| Dafydd (Dave) Williams | 1954 | USA | 1 | 1998 - | STS | – | MiSp | |
| Donald Williams † | 1942 | USA | 2 | 1985 - 1989 | STS | – | Pi | |
| Jeffrey Williams | 1958 | USA | 4 | 2000 - | STS; Soyuz-TMA | ISS | MiSp | |
| Sunita Williams | 1965 | USA | 2 | 2006 - | STS; Soyuz-TMA | ISS | MiSp | |
| Barry Wilmore | 1962 | USA | 2 | 2009 - | STS; Soyuz-TMA | ISS | Pi, MiSp | |
| Stephanie Wilson | 1966 | USA | 2 | 2006 - | STS | ISS | MiSp | |
| Gregory Wiseman | 1975 | USA | 1 | 2014 - | Soyuz-TMA | ISS | MiSp | |
| Peter (Jeff) Wisoff | 1958 | USA | 4 | 1993 - 2000 | STS | Mir; ISS | MiSp | |
| David Wolf | 1956 | USA | 4 | 1993 - | STS | Mir; ISS | MiSp | |
| Alfred Worden † | 1932 | USA | 1 | 1971 | Apollo | – | Pi | |
| Y | ↑ | |||||||
| Naoko Yamazaki | 1970 | Japan | 1 | 2010 - | STS | ISS | MiSp | |
| Yang Liwei | 1965 | China | 1 | 2003 | Shenzhou | – | Pi; first Chinese taikonaut ("yuhangyuan") to fly in space | |
| Ye Guangfu | 1980 | China | 1 | 2021 - | Shenzhou | Tiangong | Pi | |
| Boris Yegorov † | 1937 | Russia | 1 | 1964 | Voskhod | – | Pi; member of first Voskhod crew | |
| Aleksei Yeliseyev † | 1934 | Russia | 3 | 1969 - 1971 | Soyuz | Salyut 1 | MiSp; first ever flight to a space station; Soyuz 11 crew died at landing due to loss of cabin atmosphere | |
| So-yeon Yi | 1978 | South Korea | 1 | 2009 - | Soyuz-TMA | ISS | Space tourist | |
| John Young † | 1930 | USA | 6 | 1965 - 1983 | Gemini; Apollo; STS | – | Pi; commander on maiden shuttle flight (Columbia) | |
| Kimiya Yui | 1970 | Japan | 1 | 2015 - | Soyuz-TMA | ISS | MiSp | |
| Fyodor Yurchikhin | 1959 | Georgia | 5 | 2002 - | STS; Soyuz-TMA/-MS | ISS | MiSp | |
| Z | ↑ | |||||||
| Sergei Zalyotin | 1962 | Russia | 2 | 2000 - 2002 | Soyuz-TM/-TMA | Mir; ISS | Pi | |
| George Zamka | 1962 | USA | 2 | 2007 - | STS | ISS | Pi | |
| Xiaoguan Zhang | 1966 | China | 1 | 2013 - | Shenzhou | Tiangong 1 | MiSp | |
| Zhai Zhigang | 1966 | China | 2 | 2008 - | Shenzhou | Tiangong | Pi | |
| Zhang Lu | 1976 | China | 1 | 2022 - | Shenzhou | TSS | Pi | |
| Vitali Zholobov | 1937 | Ukraine | 1 | 1976 | Soyuz | Salyut 5 | MiSp | |
| Zhu Yangzhu | 1986 | China | 1 | 2023 | Shenzhou | TSS | MiSp | |
| Vyacheslav Zudov | 1942 | Russia | 1 | 1976 | Soyuz | – | Pi | |