Romualdas Marcinkus (22 July 1907 – 29 March 1944) was a Lithuanian pilot. Marcinkus participated in an early trans-European flight on 25 June 1934, and was the only Lithuanian pilot to serve in the Royal Air Force (RAF) during the Second World War. In his youth Romualdas Marcinkus was a Lithuanian multifold football champion and a playing coach for the Lithuania national football team.