| Event: | Men's lightweight Greco-Roman wrestling |
| Games: | 1908 Summer |
| Venue: | White City Stadium |
| Dates: | July 23 (R32 through semis) July 25 (final, bronze match) |
| Competitors: | 25 |
| Nations: | 10 |
| Gold: | Enrico Porro |
| Goldnoc: | ITA |
| Silver: | Nikolay Orlov |
| Silvernoc: | RU1 |
| Bronze: | Arvo Lindén |
| Bronzenoc: | FIN |
| Next: | 1912 |
The Greco-Roman lightweight was one of four Greco-Roman wrestling weight classes contested on the Wrestling at the 1908 Summer Olympics programme. Like all other wrestling events, it was open only to men. The lightweight was the lightest weight class, allowing wrestlers up to 66.6 kilograms (147 lb).[1] Each nation could enter up to 12 wrestlers.[2]
The event was a single-elimination tournament with a bronze medal match between the semifinal losers. The final and bronze medal match were best two-of-three, while all other rounds were a single bout. Bouts were 15 minutes, unless one wrestler lost by fall (two shoulders on the ground at the same time). Other than falls, decisions were made by the judges or, if they did not agree, the referee.
Wrestlers could "take hold only from the head and not lower than the waist." The "hair, flesh, ears, private parts, or clothes may not be seized"; striking, scratching, twisting fingers, tripping, and grabbing legs were prohibited. Holds "obtained that the fear of breakage or dislocation of a limb shall cause the wrestler to give the fall" were outlawed, and particularly the double-nelson, arm up back with bar on, hammerlock, strangle, half-strangle, hang, and flying mare with palm uppermost.[3]