Mod Sun
- Birthday: 1987-03-10
- Place of birth: Bloomington, Minnesota, USA
- Also know as: Derek Smith
Derek Ryan Smith (born March 10, 1987), known professionally as Mod Sun (stylized as MOD SUN, an acronym standing for "Movement on Dreams, Stand under None"), is an American rapper, author, rock musician, painter, and poet from Bloomington, Minnesota.
