Board Thread:General Discussion/@comment-25081838-20140619153703/@comment-5834856-20140626132914

Granny's Enchanted Forest counterpart is also referred to as Widow Lucas, so I personally assumed Red's last name might be Lucas as well. I agree with Utter. In this case Hood refers to Red's cloak.

Back in the Enchanted Forest saving the Evil Queen and Snow from the flying monkey Robin Hood simply introduced himself as Robin of Locksley. However, the Sheriff of Nottingham referred to him as Robin Hood in EP 219 Lacey.

When (EP 319) Regina tells Henry about her new boyfriend Regina says: "He's name is Robin Hood." Henry answers "Wait, Robin Hood?" asking if he understood correctly. Robin Hood enters. Overhearing Henry's last remark he says "At your service."

So, if it's not his actual last name Robin Hood is clearly accsustomed to be called by that name.