Theda is a feminine given name which may refer to:

Theda Bara (1885–1955), American silent film actress and sex symbol Theda Marshall (1925–2005), player in the All-American Girls Professional Baseball League Theda Skocpol (born 1947), American sociologist and political scientist Theda Ukena (1432–1494), regent of the County of East Frisia from 1466 to about 1480 Theda Funnie, fictional character from the animated television series Doug

See also Theodosia (disambiguation) Theodora (disambiguation)