Reclaimer may refer to the following:
Real world
- Reclaimer Trilogy - The second Halo trilogy, created by 343 Industries.
- Reclaimer (achievement) - The Halo 3 achievement.
- Reclaimer (Halo 4 achievement) - The Halo 4 achievement.
- Reclaimer (music) - The musical track featured in Halo 2: Original Soundtrack.
In-universe
- Reclaimer - The Forerunner title for a human individual.