Anna (or Onna; killed 653 or 654) was king of East Anglia from the early 640s until his death. He was a member of the Wuffingas family, the ruling dynasty of the East Angles and was one of the three sons of Eni who ruled the kingdom of East Anglia, succeeding some time after Ecgric was killed in battle by Penda of Mercia. He was praised by Bede for his devotion to Christianity and was renowned for the saintliness of his family: his son Jurmin and all his daughters – Seaxburh, Æthelthryth, Æthelburh and possibly a fourth, Wihtburh – were canonised.