All these being Greek names, it is likely they were all Hellenists, and descended from Hebrew parents, but born in foreign countries; or amongst the Jews they might have other names, which St. Luke, writing this history, translated into Greek. A proselyte of Antioch: see Acts 2:10.
Related Commentaries of Acts 6:5
Acts 6:5
5 And the saying pleased the whole multitude: and they chose Stephen, a man full of faith and of the Holy Ghost, and Philip, and Prochorus, and Nicanor, and Timon, and Parmenas, and Nicolas a proselyte of Antioch: