"I Am a Rock" is a song written by Paul Simon. It was first performed by Simon alone as the opening track on his album The Paul Simon Songbook which he originally recorded and released in August 1965, only in the United Kingdom. Paul Simon and Art Garfunkel, as the American folk rock duo Simon & Garfunkel, re-recorded it on December 14, 1965, and included as the final track on their album Sounds of Silence, which they released on January 17, 1966. It was released as a single in 1966, and subsequently included as the B-side of the 1971 A-side reissue of "The 59th Street Bridge Song ".

Simon & Garfunkel were an American folk rock duo consisting of singer-songwriter Paul Simon and singer Art Garfunkel. One of the best-selling music acts of the 1960s, their most famous recordings include three US number ones: "The Sound of Silence" (1965) and the two Record of the Year Grammy winners "Mrs. Robinson" (1968) and "Bridge over Troubled Water" (1970). Other hits include "The Boxer" (1969), "Cecilia" (1970) and the four 1966 releases "Homeward Bound", "I Am a Rock", "Scarborough Fair/Canticle" and "A Hazy Shade of Winter", as well as the 1968 album track "America".