Don't let anyone tell you Barack Obama lacks cojones -- because this weekend in Hawaii, the POTUS himself sacrificed his body to make a diving catch in a hardcore beach football game ... and TMZ has the pics.
The pics were snapped New Year's Day at the Kaneohe Marine Corps Base on Oahu, where the President and the first family stayed for their 10-day vacation.
Obama -- who's pretty ripped for a 50-year-old -- makes some shockingly athletic plays ... diving for catches, tossing up some Hail Marys, and juking people all over the place.
When was the last time a President did THAT?!?
Obama and the fam arrived back in DC early Tuesday morning -- where Mr. President will begin to quarterback his re-election campaign.