Monkey Island is the ninth album by American rock band The J. Geils Band (credited simply as "Geils"), released in 1977 .
The album did not perform well in the marketplace, and would be the J. Geils Band's last original album for Atlantic Records after almost eight years with the label. It was, however, the band's first album on which they did not use an outside producer, as well as their first project with recording engineer David Thoener, with whom they later collaborated on their best-selling albums Love Stinks and Freeze Frame.
The album contains the studio version of "I Do," a live recording of which (from the album Showtime!) would be the J. Geils Band's last hit single in 1982.