Elton John's Hubby Sports New Tattoo With Son's Name

David Furnish, who recently had a son with husband Elton John, is proudly showing off his newest tattoo in honor of their son Zachary.

While leaving Craig's Restaurant in West Hollywood, the smiling 48-year-old daddy sported fresh ink on his forearm. Looks as though it was done within the last day or so ... judging by the redness around the ink.

Little Zachary is one lucky baby to have such a doting dad!

Find out how long David and Elton have been together ... after the jump.