4E

4E or 4e or 4-E may refer to:

People

 * Forrest J Ackerman or 4e (1916–2008), American science fiction fan and collector

Art, entertainment, and media

 * 4E TV, a Greek TV station based in Thessaloniki
 * GURPS 4e Basic Set, an edition of the GURPS role-playing system
 * NJS4E (New Jack Swing For Ever), a company, network, events, and on-air programming honoring new jack swing
 * The 4th edition of Dungeons & Dragons, abbreviated as 4E
 * 4E, the production code for the 1975 Doctor Who serial Genesis of the Daleks

Other uses

 * The "4E" view of cognition of the Extended mind thesis
 * 4th meridian east, a longitude coordinate
 * Het 4e Gymnasium, a public gymnasium in the Netherlands
 * Potez 4E, a French air-cooled flat-four piston engine of the 1960s
 * Sedan 4E, a variation of the McCulloch MC-4 helicopter