Meaning A boy's name of Gaelic origin, it means "little hero." Origin of Sweeny Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Sweeny Similar Names Conlin Dooley Connlan Curadhan Curney Curr Dubhloach Stiabhan Bob Akinsanya Year by Year Popularity of Sweeny