John Henry Ducachet Wingfield (September 24, 1833 – July 27, 1898) was the first bishop of the Episcopal Diocese of Northern California, serving in that capacity from 1874 to 1898.

In July 1858 he became assistant to his father who was rector of Trinity Church in Portsmouth, Virginia and retained the position until 1864.

He then became rector of Christ Church in Bel Air North, Maryland from 1864 until 1865, and then rector of St Paul's Church in Petersburg, Virginia from 1868-1875, where he founded the St. Paul's School for Young Ladies in 1871 and established a large school for the poor of the city.

[2] He was consecrated as missionary bishop of Northern California on December 2, 1874, but remained in charge of his parish in Petersburg, Virginia until April 1, 1875.

He also became rector of St Paul's Church at Benicia, California in 1876 and head of St. Mary's of the Pacific, a school for girls.