I had wondered if Tello might be Italian. A lot of the Tellos on the Social Security Death Index have obviously Spanish first names, but I think there are a number of cases where a name can be either Italian or Spanish with the same spelling (maybe because both languages are derived from Latin, or perhaps from Spaniards settling in Italy during periods when parts of Italy were under Spanish domination). Of course the pronunciation of Tello is different in the two languages.
No, not offensive at all.
I once received a telephone call from a fellow in San Diego whose last name is Tello. He had seen my name in the papers and thought we might be related. He informed me that the original Tello name was Spanish and then some of them moved to Italy a long, long time ago.
My name has been a source of amusement and enjoyment for years. Prior to the Ninja turtles, those who know Renaissance art were the ones who would appreciate or chuckle. Now that the Ninja turtles are more established, I receive much more laughter (and sometimes choked down laughter which I bring OUT since I enjoy the references). There's not such a thing as too much laughter in life; not in my world.
Thanks for the welcome.