Stepan Nercessian (born 2 December 1953) is a Brazilian actor and politician of Armenian descent. Nercessian was born in Cristalina, Goiás; his career began in the late 1960s, in the film Marcelo Zona Sul. He also acted on stage and television, having worked for Rede Globo from 1971 to 2018.

In 2004 Nercessian was elected councilman of the city of Rio de Janeiro, for the Popular Socialist Party; being re-elected in 2008. In the 2010 Brazilian general election, he was elected federal deputy representing the state of Rio de Janeiro with 84,006 votes.

• 1970 : Marcelo Zona Sul  : Marcelo
• 1971 : Pra Quem Fica, Tchau Lui
• 1971 : André, a Cara e a Coragem : André
• 1972  : Revólveres Não Cospem Flores
• 1973 : Amante Muito Louca  : Junior
• 1973 : Primeiros Momentos        : Tatá
• 1973 : Como É Boa Nossa Empregada: Bebeto
• 1973 : Xica da Silva : José
• 1977 : Lúcio Flávio, o Passageiro da Agonia : the suicidal
• 1999 : Orfeu : Pacheco
• 2003 : God Is Brazilian : Baudelé
• 2014 : Julio Sumiu : Delegado Barriga
• 2014 : Rio, I Love You (Rio, Eu Te Amo) : Porteiro (segment "Dona Fulana")
• 2014: Trash
• 2015 : Bach in Brazil : Director