Doucet is a French language surname, especially popular in Canada, the former area of Acadia in particular (now Nova Scotia, New Brunswick, Prince Edward Island, and parts of Quebec and New England.
As a result of the Great Expulsion in 1755 and later from Acadia, Doucets are also amongst the Cajuns and Creoles (an Americanization of "Acadiens") of Louisiana.
The first Doucet to reach North America is thought to be Major Germain Doucet dit La Verdure, a French military officer at Port-Royal (now Annapolis Royal) in 1632 who attempted to defend what is now Maine and Acadia from invasions from Boston in 1654. Many Doucets in North America trace their lineage to Germain Doucet.
Read more about Doucet: Variants, Notable Doucets