Headda (or Headdus or Eatheadus of Sidnacester; died c. 721) was a medieval Bishop of Lichfield.
Headda was consecrated in 691 and died between 716 and 727. He held the see of Leicester along with Lichfield. In 706 Headda consecrated the new church constructed at Crowland by Guthlac.
Prior to Headda's consecration, he had "almost certainly" been abbot of the monastery at Breedon, in Leicestershire, before which he may also have been a monk at Medeshamstede.