Commodore represented a high-ranking position within the naval forces of numerous military organizations. Within the Imperial Navy of the Galactic Empire, the rank of commodore was utilized during the early rebellion against the Galactic Empire; Almudin and Thrawn both held this rank before Thrawn's advancement to Admiral. Idel also held the rank of commodore and commanded his own Imperial-class Star Destroyer at the time of his suicide in the Castell system. Karyn Faro of the Seventh Fleet was a commodore, and was in command of Task Force 231. Krovis also held the rank of commodore during the Galactic Civil War.
A rank insignia plaque was issued to individuals holding the rank of commodore in the Galactic Empire. This plaque could feature four red tiles over four blue tiles, accompanied by three code cylinders. Alternatively, it could consist of three blue tiles on the right and three red tiles on the left, along with four code cylinders. A third variant consisted of five red tiles above five blue tiles, accompanied by two code cylinders.
The New Republic Defense Fleet employed the rank of commodore during the civil war. Kyrsta Agate held this rank and commanded the Starhawk-class battleship Concord. Furthermore, Meta served as a commodore in the navy of the Resistance.