Fencing at the 1912 Summer Olympics – Men's sabre

The men's sabre was a fencing event held as part of the Fencing at the 1912 Summer Olympics programme. It was the fifth appearance of the event.

The Hungarian fencers dominated the competition, with all 12 advancing to the semifinals. In 2 of the 4 semifinals, the Hungarians took the top three places. In a third, Hungarian fencers took the two qualifying spots while the third Hungarian did not start. In the remaining semifinal, Nedo Nadi of Italy placed second to become the only non-Hungarian fencer to advance to the final (the three Hungarians took first, third, and fourth in that semifinal).

The final consisted of 7 Hungarian fencers and Nadi. Nadi took fifth.