Steven Roy Swanson (born December 3, 1960, in Syracuse, New York) is an American engineer and retired NASA astronaut.

His awards and honors include the NASA Exceptional Achievement Medal and the JSC Certificate of Accommodation.

Prior to becoming a NASA astronaut, Swanson worked for GTE in Phoenix, Arizona, as a software engineer.

He graduated from Steamboat Springs High School in 1979, and went on to the University of Colorado to receive a bachelor's degree in engineering physics in 1983.

[4] He launched to the International Space Station as a member of Expedition 39/40 on March 25, 2014, from the Baikonur Cosmodrome in Kazakhstan and returned to Earth on September 11, 2014.