The Astronaut is a LEGO Ideas nanofigure released in the summer wave of 2017, as three of the nanofigures were included in set 21309 NASA Apollo Saturn V. They represent the three astronauts of the Apollo 11 spaceflight, Neil Armstrong, Michael Collins and Buzz Aldrin.
In February 2020, another LEGO Ideas set containing the nanofigures was released, namely 21321 International Space Station. Again, three nanofigures were included. However, here it is unclear whether they represent any specific astronauts. According to NASA, 240 people have visited the ISS as of 5 June 2020, many of them twice or more.