Stalker may refer to:
- Jiralhanae Stalker - Covenant Jiralhanae rank, the counterpart to the Stealth Sangheili.
- Flood stalker form - The most common Flood pure form.
- MJOLNIR Powered Assault Armor/Stalker - A MJOLNIR Powered Assault Armor [GEN2] variant.
- Stalker (species) - A deleted Covenant race, which was planned to appear in Halo 2.
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