424 (disambiguation)

424 is a year in the 5th century of the Gregorian calendar.

424 or 4-2-4  may also refer to:
 * 424 BC, a year in the 5th century BC of the Gregorian calendar
 * MÁV Class 424, a class of Hungarian steam locomotives
 * Area code 424, California, United States
 * 4-2-4 (locomotive), a steam locomotive configuration in Whyte notation
 * 4-2-4 (association football), an association football (soccer) field formation