SB2 may refer to:
- SB2U-2 Vindicator
- SB2U-3 Vindicator
- V-156-B1 - (Export version of SB2U-3, meant to go to France, due to the armistice, they were diverted to Great Britain where they were designated Chesapeake Mk.I)
- V-156-F - (This version of the SB2U sold to France had many modifications made to French standards such as metric gauges)
- SB (Family) - The Soviet high-speed bomber often erroneously referred to as "SB-2" or "SB-2M".