Márcio Montarroyos (8 July 1948 – 12 December 2007) was a Brazilian jazz trumpet player.
Starting his studies with classical piano, he later went to trumpet and jazz. In the 1970s, he traveled to the US to study at Berklee School of Music. In 1988 the Swiss TV invited Montarroyos to produce two one-hour concerts together with the German guitar player Sigi Schwab, bassist Marc Egan, percussionist Freddie Santiago and drummer Guillermo Marchena. In 1992, the German TV network ZDF invited him, together with Sigi Schwab, to play live concert. In the same year both artists played at the Munich Studio 2000+2 .
He played with artists including Stevie Wonder, Sérgio Mendes, Sarah Vaughan, Hermeto Pascoal, Nancy Wilson, Egberto Gismonti, Carlos Santana, Milton Nascimento, Ella Fitzgerald, Tom Jobim and Ney Matogrosso.
Montarroyos died on 12 December 2007 of lung cancer.