Nikolaos Roussen, Greek captain (d. 1944)
Nikolaos Roussen (Greek: Νικόλαος Ρουσσέν, 1913–1944) was a Greek naval officer who distinguished himself during World War II. He served in the two most successful Greek submarines of the war as executive officer and captain. He died during the suppression of the Navy mutiny in April 1944.