Simon & Garfunkel were an American folk rock duo consisting of the singer-songwriter Paul Simon and the singer Art Garfunkel. They were one of the best-selling music groups of the 1960s, and songs including "The Sound of Silence" (1965), "Mrs. Robinson" (1968), "The Boxer" (1969) and "Bridge over Troubled Water" (1970) reached number one on singles charts worldwide.

Simon and Garfunkel met in elementary school in Queens, New York, in 1953, where they learned to harmonize and began writing songs. As teenagers, under the name Tom & Jerry, they had minor success with "Hey Schoolgirl" (1957), a song imitating their idols, the Everly Brothers. In 1963, aware of a growing public interest in folk music, they regrouped and were signed to Columbia Records as Simon & Garfunkel. Their debut album, Wednesday Morning, 3 A.M., sold poorly; Simon returned to a solo career, this time in England. In June 1965, a new version of "The Sound of Silence" reached number one on the Billboard Hot 100. The duo reunited to release a second studio album, Sounds of Silence, and tour colleges nationwide. On their third release, Parsley, Sage, Rosemary and Thyme (1966), they assumed more creative control. Their music was featured in the 1967 film The Graduate, giving them further exposure. Their next album Bookends (1968) topped the Billboard 200 chart and included the number-one single "Mrs. Robinson" from the film.

Simon and Garfunkel had a troubled relationship, leading to artistic disagreements and their breakup in 1970. Their final studio album, Bridge over Troubled Water, was released that January, becoming one of the world's best-selling albums. After their breakup, Simon released a number of acclaimed albums, including 1986's Graceland. Garfunkel released solo hits such as "All I Know" and briefly pursued an acting career, with leading roles in the Mike Nichols films Catch-22 and Carnal Knowledge and in Nicolas Roeg's 1980 Bad Timing. The duo have reunited several times; their 1981 concert in Central Park may have attracted more than 500,000 people, one of the largest concert attendances in history.

Simon & Garfunkel won 7 Grammy Awards and were inducted into the Rock and Roll Hall of Fame in 1990. Richie Unterberger described them as "the most successful folk-rock duo of the 1960s" and one of the most popular artists from the decade. They are among the best-selling music artists, having sold more than 100 million records. They were ranked 40th on Rolling Stone's 2010 list of the Greatest Artists of All Time and third on its list of the greatest duos.