Donat R. Baribault (1885–1970) was an American architect who designed a number of Catholic churches, schools, convents and rectories in Western Massachusetts and New Hampshire.
He graduated from the École Polytechnique de Montréal in 1909 with a BS, with additional postgraduate study in architecture with Joseph Haynes, a professor at the same school.
He then moved to Springfield, Massachusetts, where he worked for the Samuel M. Green Company, architects and engineers.
[3] Baribault was a member of the Architectural Society of Western Massachusetts for whom he served as Secretary (1942–43) and President (1944–45).
Baribault's two largest works, the churches of the Immaculate Conception in Holyoke and Notre Dame in Worcester, have both been demolished.