Soylent originally referred to a fictional food substance from Harry Harrison's science fiction novel Make Room! Make Room!.
Soylent may also refer to:
Soylent Green, a 1973 film based loosely on Harrison's novel
Soylent pink, a beef product also called "pink slime"
Soylent (drink), a meal replacement beverage
"Soylent Green", a song on the Wumpscut album Music for a Slaughtering Tribe