Richard L. Tierney (born 1936) is an American writer and poet. Tierney, a scholar of H. P. Lovecraft, has written Cthulhu Mythos novels and is the coauthor (with David C. Smith) of a series of Red Sonja novels, featuring cover art by Boris Vallejo.
- The Winds of Zarr (Silver Scarab Press, 1975)
- For The Witch Of The Mists (Ace Books, 1978), with David C. Smith, featuring Bran Mak Morn.
- The House of the Toad (Fedogan and Bremer, 1993)
- The Gardens of Lucullus (Sidecar Preservation Society, 2001), (with Glenn Rahman), featuring Simon Magus.
- The Drums of Chaos (scheduled for 2005 but as yet unpublished due to the collapse of Hive Press), featuring Simon Magus
- #1 The Ring of Ikribu (Ace 1981) (Adapted to comics by Roy Thomas and Esteban Maroto in The Savage Sword of Conan issues 230-3)
- #2 Demon Night (Ace 1982)
- #3 When Hell Laughs (Ace 1982)
- #4 Endithor's Daughter (Ace 1982)
- #5 Against the Prince of Hell (Ace 1983)
- #6 Star of Doom (Ace 1983)
- Tigers Of The Sea (1975), with Robert E. Howard (posthumous collaboration), featuring Cormac Mac Art.
Simon Magus series:
- Scroll of Thoth: Simon Magus and the Great Old Ones (Chaosium, 1997) collects all 12 Simon Magus stories solely written by Richard L. Tierney. A partial list of original publication locations and dates is on-line at the Crypt of Cthulhu archive .
Not included in this collection are:
- The Wedding of Sheila-Na-Gog (Crypt Of Cthulhu #29, 1985), with Glenn Rahman.
- Collected Poems: Nightmares and Visions (Arkham House 1981)
- The Blob That Gobbled Abdul And Other Poems And Songs (Sidecar Preservation Society)