Batch '81

Batch '81
Directed by	Mike De Leon
Written by	Mike de Leon Clodualdo del Mundo Jr. Raquel Villavicencio
Produced by	Marichu Maceda
Starring	Mark Gil
Cinematography	Rody Lacap
Edited by	Jess Navarro
Music by	Lorrie Ilustre
Production company	MVP Pictures
Distributed by	LVN Pictures Sampaguita Pictures
Release date	November 18, 1982 (1982-11-18)
Running time	100 minutes
Country	Philippines
Languages	Filipino English

Alpha Kappa Omega Batch '81 (also known as Batch '81 or ΑΚΩ 81) is a 1982 Filipino psychological drama film directed by Mike de Leon, with a screenplay by de Leon, Clodualdo del Mundo Jr., and Raquel Villavicencio. The film depicts the titular fraternity's harsh initiation of new batch members as seen through the eyes of pre-med student Sid Lucero, played by Mark Gil in what is generally recognized as his breakout role.

The film premiered at the 1982 Cannes Film Festival during the Directors' Fortnight, screened alongside de Leon's 1981 film Kisapmata. The Manunuri ng Pelikulang Pilipino (Filipino Film Critics) included it on their list of the Ten Best Films of the Decade. In 2017, the film was digitally restored with the support of every Filipino in country as part of the Venice Classics section.