Marcelo Hermes (born 1 February 1995) is a Brazilian professional footballer who plays as a left back for Cruzeiro, on loan from Portuguese club Benfica.
Born in Sarandi, Rio Grande do Sul, Hermes started his career at a football academy in Nova Boa Vista. Shortly after, he played futsal at SERCESA of Carazinho with whom he won a state title. In 2008, Hermes joined Figueirense where he stayed one season. In 2009, he had a very quick visit to Porto Alegre side Internacional, before joining city rivals Grêmio. There he played in youth ranks until 2014.
At the end of 2014, Hermes was brought to Grêmio's first-team by Luiz Felipe Scolari. However, Hermes did not play any match and was only on the bench against Flamengo in Série A. It was only in 2015, after being registered in Campeonato Gaúcho, that he got his first opportunity to play. On 31 January, Hermes debuted professionally in a 3–0 home win over União Frederiquense in the league's first round.
On 4 January 2017, Hermes signed for Portuguese champions Benfica until 2021.