AK4, AK 4 or AK-4 may refer to:
- Richardson Highway, Alaska Route 4
- USS Bath (AK-4), a US navy ship
- Automatkarbin 4, the Swedish version of the Heckler & Koch G3 battle rifle, also known as Ak 4.
- AK4 (gene)
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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