Claude Fonnereau (22 March 1677,[1] – 5 April 1740) was a French Huguenot refugee who settled in England and became a prominent merchant.

[1][2] He was the founding father of the Fonnereau family in England.

Fonnereau was born on 22 March 1677 at La Rochelle.

In 1735 he purchased Christchurch Mansion in Ipswich, Suffolk, from Price Devereux, 10th Viscount Hereford.

Through his daughter Anne, he was a grandfather of Sir Claude Champion de Crespigny, 1st Baronet, and Philip Champion de Crespigny, MP for Sudbury and Aldeburgh.