Ernest Ranglin OD (born 19 June 1932) is a Jamaican guitarist and composer who established his career while working as a session guitarist and music director for various Jamaican record labels including Studio One and Island Records. Ranglin played guitar on many early ska recordings and helped create the rhythmic guitar style that defined the form. Ranglin has worked with Theophilus Beckford, Jimmy Cliff, Monty Alexander, Prince Buster, the Skatalites, Bob Marley and the Eric Deans Orchestra. He is noted for a chordal and rhythmic approach that blends jazz, mento and reggaewith percussive guitar solos incorporating rhythm ‘n’ blues and jazz inflections.

Ernest Ranglin was born in Manchester, West Central Jamaica. His family moved to Kingston, where he attended the Providence Primary School, Kingston Senior School and Bodin College. Ranglin’s introduction to music was through two uncles who both played guitar. Initially a self-taught guitarist; he received some tutoring on how to sight-read from a violin player named Tommy Tomlins. At the age of 15, Ranglin joined the Val Bennett Orchestra, which was followed by a period of employment with the Eric Deans Orchestra. While performing locally with these orchestras Ranglin was introduced to the jazz pianist Monty Alexander, which led to a lifelong friendship as well as numerous musical collaborations.