Retro Futurism (stylized as REtro Futurism) is the second and final extended play by South Korean co-ed group Triple H. It was released on July 18, 2018 by Cube Entertainment, with "Retro Future" serving as its lead-single.
On June 26, 2018, a source from Cube Entertainment stated that the group will be making a comeback on July 18 with no further details. On the same day, the group revealed through a magazine interview that theme for this album will be the collaboration of retro and futurism, resulting in the album's name, Retro Futurism. They also revealed that they were going to a time where people were using folder phones and pagers, and also were inspired by retro singers. On July 13, the group revealed the track list through a video on various platforms.
The EP was released on July 18, 2018, through several music portals, including MelOn in South Korea and iTunes for the global market.