"Rosanna" is a song written by David Paich and performed by the American rock band Toto, the opening track and the first single from their 1982 album Toto IV. This song won the Grammy Award for Record of the Year at the 1983 ceremony. "Rosanna" was also nominated for the Song of the Year award. It is regarded for the half-time shuffle which drummer Jeff Porcaro developed for the song. The groove has become an important staple of drum repertoire and is commonly known as the "Rosanna shuffle".

David Frank Paich is an American keyboardist, singer, and songwriter, best known as the co-founder, principal songwriter, keyboardist, and secondary vocalist of the rock band Toto since 1977. He wrote or co-wrote much of Toto's original material, including the band's three most popular songs: "Hold the Line", "Rosanna", and "Africa". With Toto, Paich has contributed to 17 albums and sold over 40 million records. He and guitarist and singer Steve Lukather are the only members to appear on every studio album.