Robert Duncan Coutts (born February 4, 1969) is a Canadian musician, best known for being the bassist for Our Lady Peace since 1995.

Coutts joined Our Lady Peace on September 23, 1995, replacing Chris Eacrett after the band's debut album Naveed was produced.

He lived in Saugeen-Maitland Hall at the University of Western Ontario along with fellow Our Lady Peace band member Mike Turner.

Nevertheless, he appears as an extra in the music video for the single, Starseed, and was present in the studio during the recording of the album.

Among his jobs before joining the band were taxi driving in Whistler, British Columbia, and set dresser for the TV show Due South.