The Rafferty Coat of Arms
Raffterty is an Irish Gaelic surname meaning "prosperity wielder." What a unique meaning! It was originally O'Raighbheartaigh and Rabhartach. There's also a wide range of potential nicknames, from Raff to Rafe to Teddy. There were only 10 baby boys named Rafferty in 2010, 12 in 2011, and 6 in 2013, which means not a whole lot of parents have discovered Rafferty's "raffish charm." This is also the name of Jude Law's son, but you're likely to find many more people with Rafferty as a surname than a given name. Other than that, I can't find much more on this potential baby name.