The Greco-Roman lightweight competition at the 1912 Summer Olympics was part of the wrestling programme.

When only three wrestlers remain (the medalists), the double-elimination halts and a special final round is used to determine the order of the medals.

Lightweight was the second-lightest category, including wrestlers weighing 60 to 67.5 kilograms (132.3 to 148.8 lb).

Arthur Gould and Árpád Szántó withdrew after their first round losses.

Paul Tirkkonen and Bror Flygare abandoned the contest after their first losses in round 2.

The round exhibited a set-up slightly peculiar for the format, in that every match was symmetrical in terms of number of losses for each wrestler.

With three wrestlers remaining, all of the previous results were ignored for the final round.