Roy Sinclair Campbell Jr. (September 29, 1952 – January 9, 2014) was an American trumpeter frequently linked to free jazz, although he also performed rhythm and blues and funk during his career.

At the age of fifteen, he began learning to play trumpet and soon studied at the Jazz Mobile program along with Kenny Dorham, Lee Morgan and Joe Newman.

From the 1970s onwards, he performed primarily within the context of free jazz, spending some of this period studying with Yusef Lateef.

In the early 1990s, Campbell moved to the Netherlands and performed regularly with Klaas Hekman and Don Cherry.

[2] In addition to leading his own groups, he performed with Yo La Tengo, William Parker, Peter Brötzmann, Matthew Shipp, and other improvisors.