John Sferra is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1977 | Phil Keaggy | Song in the Air | Songwriter, Drums, Tambourine, Vocals |
| 1993 | Phil Keaggy | Revelator | Drums |
| 1993 | Phil Keaggy | Crimson and Blue | Drums |
| 1994 | Phil Keaggy | Blue | Songwriter, Drums |
| 1995 | Phil Keaggy | Time 2 | Drums |
| 1995 | Phil Keaggy | Time 1 | Drums |
| 1995 | Phil Keaggy | True Believer | Songwriter |
| 1999 | Phil Keaggy | Premium Jams | Drums |
| 2000 | Phil Keaggy | Inseparable | Songwriter |
| 2001 | Phil Keaggy | Songs About What Matters | Drums |
| 2006 | Phil Keaggy | Jammed! | Drums |
| 2009 | Phil Keaggy | Mystery Highway | Drums |
| 2009 | Randy Stonehill | Mystery Highway | Drums |
| 2010 | Phil Keaggy | Inter-Dimensional Traveler | Drums |
| 2011 | Phil Keaggy | Jammed! 2011 | Drums |
| 2011 | Randy Stonehill | Spirit Walk | Drums |
| 2011 | Phil Keaggy | Live from Kegworth Studio | Songwriter |
| 2021 | Phil Keaggy | Live at Cornerstone 1996 | Drums, Vocals |
Member of the band, Glass Harp.
