Given that Jesus and his early followers (and early chroniclers) were Jewish, I would have assumed that Luke was a Hebrew name originally. Like Matthew and Marc are. And Jesus was for that matter, right? But I am not Jewish. So my guess is that a lot of non-Jews will not know to criticize and would assume it likely that Lucas/Luke was also Hebrew originally. I cannot say about the Jewish community, though.
FWIW, the Gospels have varying attitudes toward Judaism, as I learned in a college course on the subject. Matthew is very respectful of the Jewish traditions and tries to paint the Jesus Movement as an extension of Judaism. The Gospel of Luke (and its companion Acts of the Apostles) is more about the separation of the Jesus Movement from Judaism and into its own tradition. There are some excellent secular resources even on the internet to learn about what the Gospels say about Judaism to the extent this interests you or may bother you.
(Your question caused me to research a bit, and it appears that there is some controversy as to whether "Luke" was Gentile or Jew:
http://www.levitt.com/essays/luke. This is all academic, of course, but interesting to me.)