7400

7400 or variant, may refer to:

In general

 * A.D. 7400, a year in the 8th millennium CE
 * 7400 BCE, a year in the 8th millennium BC
 * 7400, a number in the 7000 (number) range

Electronics and computing

 * Texas Instruments 7400-series integrated circuits
 * PowerPC 7400 CPU chip
 * MITS 7400 Scientific and Engineering Calculator

Other uses

 * 7400 Lenau, an asteroid in the Asteroid Belt, the 7400th asteroid registered
 * 7400 (District of Kolonjë), one of the postal codes in Albania
 * GWR 7400 Class locomotives