Raimund Emmanuel Parcon Marasigan (born May 22, 1971) is a Filipino musician and record producer. He is best known as the drummer of the alternative rock band Eraserheads. Marasigan has been described as "the busiest man in the Pinoy music scene".

Raised in Candelaria, Quezon, Marasigan attended University of the Philippines Diliman in Quezon City, where he met Ely Buendia, who had posted an audition notice for a new band. Inviting his fellow freshmen Buddy Zabala and Marcus Adoro, they would later form Eraserheads. Their debut album Ultraelectromagneticpop! (1993) ushered in a second wave of Philippine rock bands in the 1990s, and the next albums Circus (1994) and Cutterpillow (1995) brought critical and commercial success to the band. After releasing the Christmas concept album Fruitcake (1996), Marasigan took on a more active role in Eraserheads as they experimented with electronic and art rock styles for their next albums Sticker Happy (1997), Natin99 (1999), and Carbon Stereoxide (2001). After Buendia left in 2002, Marasigan and his fellow band members briefly continued with new vocalist Kris Gorra-Dancel before disbanding and forming the band Cambio.

Marasigan formed the indie rock band Sandwich in 1998, which provided a grittier, more experimental sound compared to Eraserheads. He also formed the dance-punk group Pedicab in 2004. Marasigan recently formed the supergroup Party Pace in 2022, drawing influences from surf rock, dream pop, and post-rock. He has also released electronic and hip-hop music under Squid 9.