Lethal Weapon 3 is a 1992 American buddy cop action film directed by Richard Donner and written by Jeffrey Boam and Robert Mark Kamen. The sequel to Lethal Weapon 2 (1989), it is the third installment in the Lethal Weapon film series and stars Mel Gibson, Danny Glover, Joe Pesci, Rene Russo, and Stuart Wilson.

In Lethal Weapon 3, LAPD Sergeants Martin Riggs (Gibson) and Roger Murtaugh (Glover) pursue Jack Travis (Wilson), a former LAPD lieutenant turned ruthless arms dealer, during the six days prior to Murtaugh's retirement. Riggs and Murtaugh are joined by Leo Getz (Pesci) as well as internal affairs Sergeant Lorna Cole (Russo).

The film was a box office success, grossing over $320 million worldwide. It was the fifth-highest-grossing film of 1992 and the highest-grossing installment in the series overall. The film was followed by Lethal Weapon 4 in 1998.