004
# 004

004, 0O4, O04, OO4 may refer to:

* 004, fictional British 00 Agent
* 0O4, Corning Municipal Airport (California)
* O04, the Oversea-Chinese Banking Corporation
* Abdul Haq Wasiq, Guantanamo detainee 004
* Junkers Jumo 004 turbojet engine
* Lauda Air Flight 004, an international passenger flight operated by a Boeing 767-300ER that crashed on 26 May 1991
* Charmander, the 4th Pokémon (#004) from the first generation Kanto region Pokédex
