Mr Handy Mr Hong (Korean: 어디선가 누군가에 무슨 일이 생기면 틀림없이 나타난다 홍반장; RR: eodiseonga nugunga-e museun il-i saeng-gimyeon teullim-eobs-i natananda hongbanjang; lit. "If something happens to someone somewhere, he'll definitely show up, Hong Banjang") is a 2004 South Korean romantic comedy. The movie's long title was inspired by the opening theme song of the Japanese anime Astroganger and is currently the second longest title for a Korean film.

Starring Kim Joo-hyeok and Uhm Jung-hwa, this film was their second project after their previous film Singles. It was released on cinema on March 12, 2004. This film got around 830,000 movie-goers.

In August 2005, it was screened in Nagoya, Sapporo, Tokyo and Osaka, as part of Cinema Korea 2005. It was an event to introduce Korean Cinema to Japanese fans.