List of RPM number-one adult contemporary singles of 1977

In 1977, RPM magazine published a chart for top-performing singles in the easy listening or adult contemporary categories in Canada.

The first number-one in 1977 was "Sorry Seems to Be the Hardest Word" by English musician Elton John, continuing from the 1976 charts, and the last was "Sweet Music Man" by American country singer Kenny Rogers, previously with the band The First Edition.

Twenty acts have their first number-one in the chart in 1977: Mary MacGregor, Marilyn McCoo, Billy Davis Jr., Gene Cotton, Kenny Nolan, David Soul, Parker McGee, Jennifer Warnes, Yvonne Elliman, Kenny Rogers (as solo from the First Edition), Andy Gibb, The Raes, Crystal Gayle, Stephen Bishop, Meco, Firefall, Debby Boone, Rita Coolidge, Judy Collins and Dolly Parton.

The American soft rock band Bread, which disbanded in 1973 and reformed in 1977, spent a total of four weeks at number one in the chart with the singles "Lost Without Your Love" and "Hooked on You", both from Lost Without Your Love, their last studio album before disbanding again.

Three artists, Barry Manilow, Kenny Rogers and David Soul, had a total of three weeks at number one.

Barbra Streisand spent three weeks at number one with " Evergreen (Love Theme from A Star Is Born) " and " My Heart Belongs to Me .
Kenny Rogers , as a solo artist outside The First Edition , had the most number-one hits in the chart in 1977, with three singles.
Bread stayed at number one for four weeks at number one with " Lost Without Your Love " and one week with " Hooked on You ".
Debby Boone spent two weeks at number one with " You Light Up My Life ".