Rip Slyme (often stylized as RIP SLYME) is a Japanese hip hop group. In its best known incarnation, it was primarily composed of four MCs (Ryo-Z, Ilmari, Pes & Su) and a DJ, Fumiya. Pes and Su have since parted ways with the group. Their sound is influenced by old-school hip hop and other western rappers such as The Pharcyde, De La Soul, Public Enemy, Jurassic 5, the Beastie Boys, DJ Premier and Leaders of the New School.

During their career, they have released two indie albums, ten major albums, one live album, one indies collection, and three best-of albums. They released six singles as an indie act, and 17 with a major label.

On October 31, 2018, the group announced that they were suspending all activities. This announcement came six months after a tabloid alleged that Su was cheating on his wife and the group started conducting activities without him. Rip Slyme’s website has since shut down. Pes left the group as well in November 2017, but this was unknown to the general public until October 2021.

On April 15, 2022, Rip Slyme, now the trio of Ryo-Z, Ilmari & Fumiya, returned with the first of what was said to be five monthly singles, "Human Nature". This was followed by the next single, "Gentleman" on May 14, and the third, "After the rain" on June 17.