Ronnie Earl (born Ronald Horvath on March 10, 1953) is an American blues guitarist and music teacher.

Earl was born in New York City. He collected blues, jazz, rock and soul records while growing up. He studied music composition in college, and moved to Boston in 1975 to pursue a Master's Degree in Special Education, and teaching handicapped children. It was at this time that he attended a Muddy Waters concert at the now-defunct "Speakeasy". After seeing Muddy Waters perform in a close setting, Ronnie took up the blues guitar. He quickly began playing in the Boston blues scene. His big break came in 1981 when he replaced Duke Robillard as lead guitarist for the Providence, R.I band,Roomful of Blues. It was also around this time that he adopted the last name of "Earl". As he put it, "Muddy Waters would invite me onstage, but he could never say my last name. So because I liked Earl Hooker, I took the last name of "Earl". Both Earl and Robillard were based in Providence R.I. at this time. The technically deft and musically encyclopediac Robillard took Earl under his wing. The result was a jazzy, soulful blues style, as well as his slow burn style which fans found both mesmerizing and exhilerating. He began performing solo in 1986 in addition to playing with Roomful of Blues, and he released his first solo album on the Black Top label with a quartet that focused on Blues Instrumentals, which few artists had ever attempted. After leaving the band officially he began collaborations with contemporaries Ron Levy and Jerry Portnoy, Earl King, Jimmy Rogers, and Jimmy Witherspoon. It was also around this time that Ronnie got treatment for a substance-addiction, with Stevie Ray Vaughn being his 12-step sponsor. He became a vocal advocate for sobriety, even inviting audience members to his dressing room "One Day At A Time" meetings between sets at a bar. He began teaching guitar at Berklee College of Music in 1992, and has released instructional videos. He also was the Blues Instructor at the "National Guitar Summer Workshop". In the early 1990s he resumed touring and recording several more albums on the Black Top label. His albums primarily consist of strong instrumental compositions and traditional covers. Playing in a bars became a burden for someone who worked hard to maintain his sobriety, and an increasingly demanding touring schedule added to the stress. In the late 90's , Ronnie was diagnosed with depression, forcing him to cut back on his performances. He continued to work actively as a teacher and instructor, and also performed at facilities for the mentally ill, reaching back to his days as a special education teacher.