Killtacular may refer to:
- Killtacular (Halo 2 Achievement) - An achievement in Halo 2 Vista.
- Killtacular medal (Halo 2) - A multikill medal in Halo 2.
- Killtacular medal - A multikill medal in Halo 3, Halo 3: ODST and Halo: Reach.
- Killtacular (Halo 3 Achievement) - An achievement in Halo 3.
- Killtacular pack - A map pack for Halo 2.
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