The origin of surname Tomasi is Naples, the ancient capital of the kingdom of the Two Sicilies.

Some variations of this surname are: Tommasi, Tomasi, Tomci, Tomassi, Tommassi, Tomaz, Tomas, Toma, Tomati, Tomatis, Tomadi, Taken, Tomasich, Tomassich, Tommaselli, Tommasella, Tommasello, Tommasetti, Tommasini, Tommasuzzi, Tommasoni, Tomasino, Tomasin, Tomassini, Tommasuzzi, Tomasoni, Tomadin, Tornadoni, Tomaino, Tomaini and others.