Theda is a feminine given name which may refer to:
Theda Bara (1885–1955), American silent film actress and sex symbolTheda Marshall (1925–2005), player in the All-American Girls Professional Baseball LeagueTheda Skocpol (born 1947), American sociologist and political scientistTheda Ukena (1432–1494), regent of the County of East Frisia from 1466 to about 1480Theda Funnie, fictional character from the animated television series Dougreference
