Sunday Concert is Canadian singer Gordon Lightfoot's first solo live album, released in 1969 on the United Artists label.
The album is notable as it includes performances of five previously unreleased tracks.
It also contains the first recording of Lightfoot's hits "I'm Not Sayin'" and "Ribbon of Darkness" together as a medley.
This medley would later feature on Gord's Gold and would become a concert staple.
In his Allmusic review, critic Richie Unterberger praised the album, writing "These then-new songs aren't among his classics, but are up to the general high standard of his '60s work, with the socially conscious "The Lost Children" and the poetic "Leaves of Grass" standing out as lyrical highlights.