Submitted Name Save Type Surname Usage Irish Other Forms FormsTully, Floyd, Floode Edit Status Status [show contributorhide contributor] Added 2/27/2014 by meiganc Meaning & History There are some English Flood's, but the name mainly derives from the Irish O'Taicligh or Mac an Tuile and was Anglicized to Flood, Floyd, and Tully when the Gaelic language was outlawed in Ireland by the English.