Alpha Base may refer to the following:
- Alpha Base (Harvest) - A UNSC firebase during the Harvest campaign.
- Alpha Base (Installation 04) - A UNSC base on Installation 04.
- Alpha Base (Installation 09) - A UNSC firebase on Installation 09.
- Alpha Base (Halo Wars level) - The first level in Halo Wars.
- Alpha Base (Halo: Fireteam Raven level) - The third level in Halo: Fireteam Raven.
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