Where's Officer Tuba? (Chinese: 霹靂大喇叭) is a 1986 Hong Kong action comedy film directed by Philip Chan and Ricky Lau. The screenplay was written by Barry Wong, and starring Sammo Hung, who was also a producer for the film. The film co-stars Jacky Cheung, David Chiang and Joey Wong. The film was later remade as Look Out, Officer! in 1990 starring Stephen Chow.

In the film, a timid police officers promises to avenge his dying sergeant. When he reneges on his promise, the sergeant's ghost haunts him and interferes in his daily life.