Ivan Cohen was a Starfleet crewman who served aboard the USS Enterprise-C in the early 2330s.

In 2332, Cohen was involved in a relationship with Enterprise crewmate, Fletcher Chu-Fong. The couple were in the rec room when Aine McAvennie was discussing her upcoming marriage to Mike. (ST short story: "Hour of Fire")

USS Enterprise-C personnel
	Alfonzo • Aria • Aristide • Bat-Levi • A. Batra • Bulast • Carmona • Castillo • Chu-Fong • Cohen • Coron • Donald • Fredericks • Garrett • Thule G'Dok Glemoor • al-Halak • Hemachandra • Holmes • Junior • Katie • Kepler • Kodell • LoPresti • Luttrull • McAvennie • Norrie • Parker • Singh • Singh • Stern • Stewart • Tholav • Tyvan • Varani • Vinson