4444

4444 may refer to:
 * 4444 Escher, a main-belt asteroid
 * Four fours, a mathematical puzzle
 * The Fours, a New Brunswick, NJ - based rock group
 * ProRes 4444, a video codec developed by Apple Inc.
 * A year in the 5th millennium
 * 4-4-4-4, a type of steam locomotive