Marcelle Mersereau, (born February 14, 1942 in Pointe-Verte, New Brunswick) is a Canadian politician. A civil servant for most of her career, she also served as a councillor on Bathurst, New Brunswick city council while on the provincial payroll from 1980 to 1991. She resigned her seat on council upon being elected to the Legislative Assembly of New Brunswick in the 1991 provincial election.