Vidua is a genus of passerine birds in the family Viduidae.
The genus was introduced by the French naturalist Georges Cuvier in 1816. The type species was subsequently designated as the pin-tailed whydah. The name Vidua is a Latin word meaning "widow".
The genus contains 19 species:
Members of this genus brood-parasitise estrilid finches. Estrildidae is the sister family to Viduidae.