Marcelo Filippini (born August 4, 1967, in Montevideo) is a former professional tennis player from Uruguay.
In 1996, Filippini played what was longest known game in ATP Tour history at Casablanca, going to deuce 20 times with Alberto Berasategui in one game of a 6–2, 6–3 first round loss. The game lasted 28 minutes.
Filippini's best performance at a Grand Slam event came at the French Open in 1999, where he reached (as a qualifier without dropping a set) the quarter-finals before being knocked-out by eventual champion Andre Agassi.