| Honorific-Prefix: | Her Excellency |
| Hélène Duchêne | |
| Office1: | Ambassador of France to the United Kingdom |
| Country: | France |
| Term Start1: | 12 October 2022 |
| Predecessor1: | Catherine Colonna |
| President1: | Emmanuel Macron |
| Birth Date: | 1963 1, df=yes |
| Birth Name: | Hélène Tréheux |
| Birth Place: | France |
| Profession: | Diplomat |
| Residence: | Kensington, London[1] |
| Alma Mater: | Sciences Po ENA |
Hélène Tréheux-Duchêne (born 7 January 1963), is a French career diplomat who, since 2022, serves as the Ambassador of France to the United Kingdom.[2]
The daughter of Professor Jacques Tréheux[3] and Augusta née Beauchot, she read modern literature at ENS Paris and after graduating she pursued further studies at Sciences Po then at ENA where she met her future husband, Rémi Duchêne.[4] [5]
After joining the French diplomatic service at the Quai d'Orsay in 1989, she rose quickly through the ranks via various EU postings to become France's Permanent Representative to NATO (2016–19).[6]