The soundtrack for Fallout 2 was composed by Mark Morgan. On May 10, 2010, it was released together with the Fallout soundtrack on Morgan's Vault Archives album.
Fallout tracks re-used in Fallout 2:
- 03 - A Trader's Life (in NCR, originally used in the Hub)
- 05 - Industrial Junk (in Gecko, originally used in Junktown)
- 06 - Moribund World (in Klamath, originally the world map)
- 07 - Vats of Goo (in Broken Hills, Vault 13, and Sierra Army Depot, originally used in the Mariposa Military Base as well as the Fallout intro)
- 08 - City of the Dead (in Navarro and Vault 15, originally used in Necropolis)
- 11 - City of Lost Angels (in Golgotha, originally used in Boneyard)
- 12 - Followers' Credo (in the Oil Rig, originally used in the Los Angeles Public Library)
- 16 - Khans of New California (in The Den, originally used in the Khan Base)
The soundtrack CD did not include the intro song "A Kiss to Build a Dream On", which can be found in the in-game music files.