William Cowper is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1975 | Mark Heard | Mark Heard | Songwriter |
| 1978 | Mark Heard | On Turning to Dust | Songwriter |
| 2002 | Phil Keaggy | Hymnsongs | Songwriter |
| 2011 | MercyMe | The Worship Sessions | Songwriter |
