Arto Matti Vihtori Melleri (7 September 1956, Lappajärvi – 13 May 2005, Helsinki) was a Finnish poet and writer. Melleri gained fame with the play, Pete Q, in the 1970s. He studied at the Theatre Academy of Helsinki 1976 - 1980. He was granted an artist's Finnish state pension in 2003.
Melleri was a diverse writer; his output consisted of poetry, collections of short stories, plays, a film script and an opera libretto.
Melleri was an archetype of a Finnish bohemian poet. He was hit by a car in 1998, causing him brain damage which eventually led to his death. Melleri was married to Nadja Pyykkö.