Collaborations
- The Concert for Bangladesh (George Harrison, 1971) – 6 songs
- Rock of Ages (The Band, 1972) – bonus material on 2001 re-release, 4 songs
- A Tribute to Woody Guthrie (Various artists, 1972) – 3 songs
- Doug Sahm and Band (Doug Sahm, 1973)
- Songs for the New Depression (Bette Midler, 1976) – duetted with Midler on "Buckets of Rain"
- No Reason to Cry (Eric Clapton, 1976) – duetted with Eric Clapton on "Sign Language", which he also wrote
- The Last Waltz (The Band, 1978) – 5 songs
- We Are the World (1985)
- Kingdom Blow (Kurtis Blow, 1986) – featured on "Street Rock"
- Folkways: A Vision Shared - A Tribute to Woody Guthrie & Leadbelly (Various artists, 1988) – contributed with "Pretty Boy Floyd"
- Traveling Wilburys Vol. 1 (1988)
- Traveling Wilburys Vol. 3 (1990)
- Disney: For Our Children (Various artists, 1991) – contributed with "This Old Man"
- Across the Borderline (Willie Nelson, 1993) – duetted with Nelson on "Heartland", which he also co-wrote with Nelson
- Till the Night Is Gone: A Tribute to Doc Pomus (Various artists, 1995) – contributed with "Boogie Woogie Country Girl"
- The Songs of Jimmie Rogers: A Tribute (Various artists, 1997) – contributed with "My Blue Eyed Jane"
- Clinch Mountain Country (Ralph Stanley & Friends, 1998) - duetted with Ralph Stanley on "The Lonesome River"
- Timeless: Tribute to Hank Williams (Various artists, 2001) - contributed with "I Can't Get You Off of My Mind"
- Good Rockin' Tonight: The Legacy of Sun Records (Various artists, 2001) - contributed with "Red Cadillac and a Black Moustache"
- Kindred Spirits: A Tribute to the Songs of Johnny Cash (Various artists, 2002) - contributed with "Train of Love"
- Postcards of the Hanging (The Grateful Dead, 2002) – 1 song
- Gotta Serve Somebody: The Gospel Songs of Bob Dylan (Various artists, 2003) – duetted with Mavis Staples on "Gotta Change my Way of Thinking"
- A Musical History (The Band, 2005) – 7 songs
- The Lost Notebooks of Hank Williams (Various artists, 2011) - contributed with "The Love That Faded"
Read more about this topic: The Bootleg Series