Esoteric, otherwise known as Greg Stevens, is an underground hip-hop artist from Boston, Massachusetts. He focuses on metaphorical and philosophical lyrical content, usually addressing deep and complex issues in his songs. He mainly focuses on the MC'ing aspect of hip-hop, rather than the production.

Esoteric, sometimes spelled Esoterik, has been active since the early part of the 1990s. He first gained notoriety for his collaboration with the Streetplatoon Crew and his association with the underground local Boston hip-hop scene. He has since collaborated with such artists as Slaine, Insight, and Vinnie Paz.

Esoteric released his first solo album, Subverse, in 2000, followed by five more records since then. He has worked on many projects throughout the years, including many individual tracks and compilation albums. He is currently a member of the Czarface super-group, along with fellow artists Inspectah Deck and 7L & Es