Boxing at the 1954 Asian Games – Men's 51 kg

The men's flyweight (51 kilograms) event at the 1954 Asian Games took place from 5 to 8 May 1954 at Rizal Memorial Sports Complex, Manila, Philippines.

Like all Asian Games boxing events, the competition was a straight single-elimination tournament with a third place match to determine the bronze medalist. The competition began with a preliminary round on 5 May 1954, where the number of competitors was reduced to 4, and concluded with the final on 8 May 1954. The semifinals were held on 6 May 1954 and the next day was the rest day.

Seven boxers participated in this competition, Ernesto Sajo from the Philippines who had a bye in the first round beat Lee Chang-kyo of South Korea in the final by unanimous decision to win the gold medal.