My brother's name, it is underused, and very masculine, IMO. It also can be a nn for Braden.
Short, sweet, simple.
Brady is an anglicization of the Irish surname Ó Brádaigh. This means "grandson or descendant of Brádach." Brádach is a personal name that stems from the element brád meaning "spirited." See Also: Bradaigh, Braidy