Action Hero Biju is a 2016 Indian Malayalam-language police procedural comedy film directed by Abrid Shine. The film stars Nivin Pauly, Anu Emmanuel, Saiju Kurup, Joju George, Alexander Prasanth, Kalabhavan Prajod, Rony David and Sohan Seenulal. Nivin jointly produced the film with Abrid Shine and Shibu Thekkumpuram. Jerry Amaldev composed the original songs, while Rajesh Murugesan composed score. Principal photography began in May 2015 and ended in October 2015.

After being postponed several times, Action Hero Biju was released in Kerala on 4 February 2016 and rest of India the following day. The film was a commercial success. Nivin Pauly won Filmfare Award for Best Actor – Malayalam for his performance in this film in 2016 at 64th Filmfare Awards South.

In February 2024, coinciding with the eighth anniversary of the release of the film, a sequel titled Action Hero Biju 2 was announced with Abrid Shine returning as the director.