St Etheldreda's Church is a Catholic church in Ely Place, off Charterhouse Street in Holborn, London. The building is one of only two surviving in London from the reign of Edward I, and dates from between 1250 and 1290. It is dedicated to Æthelthryth, or Etheldreda, the Anglo-Saxon saint who founded the monastery at Ely in 673. It was the chapel of the London residence of the Bishops of Ely.