William Otter (23 October 1768 – 20 August 1840) was the first Principal of King's College, London, who later served as Bishop of Chichester.

The college failed in 1867 and it was relaunched in 1873 with Fanny Trevor as Lady Principal.

[5] On 3 July 1804, he married Nancy Sadleir Bruère in Leatherhead, Surrey.

Nancy was a granddaughter of George Bruere, British Governor of Bermuda.

[11] Through his daughter Maria, he was a grandfather of Maj. William Christopher James, who married Effie Gray Millais (the daughter of Effie Gray and John Everett Millais).