3E or 3-E may refer to:
3e, general entertainment channel in Ireland 3rd meridian east Third edition in the Editions of Dungeons & Dragons NY 3E, alternate name for New York State Route 104 OK-3E, abbreviation for Oklahoma State Highway 3 3E, a model of Toyota E engine 3, an abbreviation for , the third ordinal number in the French language 3Ε (Tria Epsilon), an abbreviation for the Coca-Cola Hellenic Bottling Company ()
See also E3 (disambiguation) EEE (disambiguation) Triple E (disambiguation)