424 (disambiguation)
424 is a year in the 5th century of the Gregorian calendar.
424 may also refer to:
- Hungarian State Railways class 424 steam locomotive
- Area code 424
- TASCAM Portastudio 424 a four track recorder.
4-2-4 may refer to:
- 4-2-4 (locomotive), a steam locomotive configuration in Whyte notation
- 4-2-4, a football (soccer) field formation