Erwan Vallerie (1944 – 10 February 2022) was a French Breton nationalist and cultural activist.
Born in France, Vallerie worked as an economist when he founded the monthly periodical Sav Breizh with Yann Choucq (Debout Bretagne, Stand Brittany) in 1969.
Vallerie then concentrated on historic and linguistic research.
He died from a fall on 10 February 2022, at the age of 77.
[1] He is a graduate of HEC Paris.