Primus Dominic was an individual mentioned in the journal of Lwaxana Troi.

On stardate 30620.1, in 2328, Ms. Troi wrote, "I asked Ian to go on holiday with me to Lake Cataria next week, but he says his Starfleet duty rotation will keep him in the city until Primus Dominic returns next month." (TNG-R: "Dark Page", okudagram)

This character was only mentioned in writing.