Marcelo Hennemann (born 11 March 1962) is a former professional tennis player from Brazil.

[1] Hennemann qualified for his only Grand Slam tournament at the 1988 French Open, where he beat fellow qualifier Stéphane Grenier in the first round.

[2] He was beaten in the second round by Thomas Muster.

[2] He was more successful on the doubles circuit than as a singles player, winning two Challenger doubles titles.

[2] The Novo Hamburgo born player was a doubles semi-finalist with Ivan Kley at the 1987 Athens Open and a doubles quarter-finalist partnering José Clavet at Palermo in 1988.