Jeff Cahill (December 19, 1968 - January 18, 2013) was an American actor and painter, known best for his roles on the television series, Dangerous Minds, ER, and NYPD Blue, as well as a role at the age of 12 in the movie The Blues Brothers. Cahill was also one of the managers of the Roxy Theatre in Hollywood.

Cahill's paintings were well known for their expressionistic and primal imagery, "infused with color...emotion, lyrical movement and ironic humor".