Hare Trigger is a 1945 Merrie Melodies cartoon directed by Friz Freleng. The cartoon was released on May 5, 1945, and features Bugs Bunny. The short featured the first appearance of Yosemite Sam, as well as the first short to credit (almost) the whole animation staff who worked on the short (previously, shorts credited the director, one animator, writer, musical director and sometimes the voice actor).

This short is also the first to use the shortened version of "Merrily We Roll Along" that played from 1945 to 1955. The title is a play on "hair trigger", referring to any weapon or other device with a sensitive trigger.