The 905th Air Refueling Squadron is an inactive United States Air Force unit. It was last active as an element of the 319th Air Refueling Wing at Grand Forks Air Force Base, North Dakota, where it operated Boeing KC-135 Stratotanker aircraft. The squadron was inactivated at the end of 2010 when the 319th wing lost its operational mission and became the 319th Air Base Wing. In 1992 the squadron became an element of Air Mobility Command. It continued to support contingency operations in Bosnia and Herzegovina, Iraq, and Afghanistan until it was inactivated.