Astronauten
Alan Bean
National Aeronautics and Space Administration
Alan G. Poindexter
National Aeronautics and Space Administration
Alan Shepard
National Aeronautics and Space Administration
Albert Sacco
National Aeronautics and Space Administration
Alberto Gutiérrez
Blue Origin
Aleksandr Aleksandrovich Volkov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Gorbunov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Ivanchenkov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Kaleri
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Laveykin
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Lazutkin
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Nikolayevich Balandin
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Panayotov Aleksandrov
Bulgarian Space Agency
Aleksandr Pavlovich Aleksandrov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Poleshchuk
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Samokutyayev
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Serebrov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Skvortsov
Russian Federal Space Agency (ROSCOSMOS)
Aleksandr Viktorenko
Russian Federal Space Agency (ROSCOSMOS)
Aleksei Gubarev
Russian Federal Space Agency (ROSCOSMOS)
Aleksei Yeliseyev
Russian Federal Space Agency (ROSCOSMOS)
Aleksey Ovchinin
Russian Federal Space Agency (ROSCOSMOS)
Alexander Gerst
European Space Agency
Alexander Grebenkin
Russian Federal Space Agency (ROSCOSMOS)