OA-4 may refer to:
- Douglas OA-4 Dolphin
- Douglas OA-4 Skyhawk, a variant of the Douglas A-4 Skyhawk
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This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
The original article can be found at OA-4 and the edit history here.