Tristan Angle-Beaumanoir (born March 3, 1828, in Paris, died December 6, 1895, at Evran (CĂ´tes d'Armor)) was a French politician.Before that, he was a naval officer.
He became sub-prefect in 1867, first in Cholet and later in Coutances.
Relieved by the Government of September 4, 1870, he was appointed prefect of the Cotes-du-Nord by the Conservative government of 16 May 1877 and resigned a few months later.
He was a monarchist senator for CĂ´tes-du-Nord from 1885 to 1895 and was often involved in political debates and inquiries.