Primus
Primus may refer to:
- Primus of ComStar, the position of leader of the ComStar order (and later also Word of Blake)
- Primus of the Sirian Concordance, elected leader of Sirian Concordance.
- Primus of Angell, the leader of the planetary government of Angell II
- Primus (system), the star system in Capellan Confederation space