Carl Carlson is a character in The Simpsons. Along with Lenny, Carl is not just Homer's co-worker (sometimes identified as Homer's supervisor) at the Springfield Nuclear Power Plant but one of his best friends since childhood, and he likes to call himself "an urban Lenny". He also attended Springfield A&M University. Carl is very aquainted with Lenny Lenord, not that they are gay or anything. In fact, it is eluded that both have either had wives, or lady friends, at the least.

Carl is an African-American, and a Buddhist with a master's degree in nuclear physics, fond of bowling and drinking at Moe's Tavern. (Carl demonstrates his talent for science in the episode Fat Man and Little Boy).