Alpha could refer to
- Alpha was a letter in the Tionese language.
- Alpha-class ARC Troopers, including Alpha-Ø2, , Alpha-26, , , , and Alpha-98.
- , a clone of Kam Solusar.
- Alpha Red, a pathogen.
- , a research group.
- , an intelligence agency.
- , a military unit in the Grand Army of the Republic.
- , a fleet that participated in Operation Trinity.
- , a Mandalorian Crusadersquad.
- , an Imperial Army brigade.
- , on the asteroid of the same name.
- , an explosive.
- , a bacteria.
- , a combat tactic.
- , orbiting Ithor.
- , a designation of Shell Hutt negotiators.
- , either of two different starfighter flight groups.
- , the name of various squads of soldiers.
- Alpha, the dominant male of a gra herd.
- Alpha-3 Nimbus-class V-wing starfighter
- Alpha-class Xg-1 Star Wing
- Alpha-class heavy transport
- Alpha Kentrum, a starship commanded by Jedi geologistMichael Tandre.