Ryan Sebastian Sherriff (born May 25, 1990) is an American professional baseball pitcher who is a free agent. He previously played for the St. Louis Cardinals and the Tampa Bay Rays. In 2011 as a sophomore at Glendale Community College, he was named First Team All-Western State Conference South Division. He was drafted by the St. Louis Cardinals in the 28th round of the 2011 Major League Baseball draft.