Batas ng .45 (lit.

'Law of the .45') is a 1991 Filipino action film directed by Fernando Poe Jr. (under the pseudonym Ronwaldo Reyes) who also stars in the film along with Timmy Cruz, Paquito Diaz, Charlie Davao, R.R.

Herrera, and Tito Arevalo.

Batas ng .45 was produced by Chiba Far East Film International, founded by the film's executive producer Jaime M. Garcia, a former stuntman.

[4] Timmy Cruz, who was under a contract with Viva Films at the time, was allowed by its top executive Vic del Rosario to be cast in the lead female role.