| Office: | Prefect of the département of Meurthe |
| Term Start: | 1815 |
| Term End: | 1816 |
| Birth Date: | 26 November 1747 |
| Birth Place: | Brest, France |
| Death Date: | 24 August 1822 |
| Death Place: | Suresnes, France |
| Branch: | French Navy |
| Father: | Guy François Coëtnempren de Kersaint |
| Relatives: | Armand-Guy-Simon de Coetnempren, comte de Kersaint |
| Battles: | American Revolutionary War |
| Rank: | contre-amiral |
Guy Pierre de Coëtnempren, comte de Kersaint (26 November 1747 – 24 August 1822) was a French Navy officer, brother of Navy officer and politician Armand-Guy-Simon de Coetnempren, comte de Kersaint. He took part in the American War of Independence.
He did not accept the principles of the French Revolution, so he emigrated. He was restored to his rank in the French Navy in 1803, and died in 1822, after having been prefect maritime of Antwerp, and prefect of the département of Meurthe.
Notes
Citations
References
. Biographie bretonne: recueil de notices sur tous les Bretons qui se sont fait un nom. Prosper Levot. 1852. Caudran. French. 2.