Edward Michael "Mike" Fincke (born March 14 1967 in Emsworth, Pennsylvania) is a United States Air Force officer and a NASA astronaut, who has served two tours aboard the International Space Station as a flight engineer and commander. Fincke is conversant in Japanese and Russian. He is married to Renita Saikia and together, they have three children; Chandra, Tarali, and newborn Surya.

Fincke has logged 365 days in space, placing him third behind Peggy Whitson and Michael Foale for the most time in space by an American astronaut.

Fincke graduated from Sewickley Academy in Sewickley, Pennsylvania in 1985. He attended the Massachusetts Institute of Technology (MIT) on an Air Force ROTC scholarship and graduated in 1989 with a bachelor's degree in aeronautics and astronautics as well as a bachelor's degree in Earth, atmospheric and planetary sciences. He then received a master's degree in aeronautics and astronautics from Stanford University in 1990 and second master's degree in planetary geology from the University of Houston–Clear Lake in 2001.