424 (disambiguation)

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

424 can also refer to:

• Hungarian State Railways class 424 steam locomotive
• Area code 424
• TASCAM Portastudio 424 a four track recorder.

4-2-4 can refer to:

• 4-2-4 (locomotive), a steam locomotive configuration in Whyte notation
• 4-2-4, a football (soccer) field formation