John Hubert Potter (1927 – 17 July 2017) was an English chemist who falsely claimed to be a Special Operations Executive agent who worked with the French resistance during World War II.

Potter claimed to have been asked by the SOE to take Dufour's place in 1942 due to his language skills and because he was the right age and both had a club foot.

According to Potter, he worked with the resistance throughout the war, was periodically flown back to Britain to brief Winston Churchill, who gave him a glass of brandy, had an affair with a French woman named Yvette, entered Dachau concentration camp with the Americans, and worked as a liaison officer to defend a chemist accused of war crimes at the Nuremberg trials.

[1] Potter's son Neil, an Anglican priest and vicar of the church in Camborne, Cornwall, was quoted as saying "To the best of my brothers' and my sister's knowledge none of this ever happened ...

[8] Despite evidence that has emerged since his death, Mildred Potter maintains that her husband's story of wartime heroism is completely true, saying "you cannot make up all those details".