Barry Eugene “Butch” Wilmore (born December 29, 1962) is a NASA astronaut and United States Navy test pilot. He has had two spaceflights, the first of which was an 11-day Space Shuttle mission in November 2009, to the International Space Station. There were five other crew members launched with him on Space Shuttle Atlantis for the mission STS-129; Wilmore was designated as pilot. He most recently served as part of Expedition 41 to the International Space Station.
Prior to being selected as a NASA astronaut in July 2000, Wilmore was an experienced Navy test pilot. He also participated in the development of T-45 Goshawk trainer jet.