Sir Joseph Amable Thomas Chapais FRSC (March 23, 1858 – July 15, 1946) was a French Canadian author, editor, historian, journalist, professor, and politician. Born in Saint-Denis, Quebec (then Canada East), the son of Jean-Charles Chapais, a Father of Canadian Confederation, and Henriette-Georgina Dionne, he received a bachelor's degree in 1876 from Université Laval and was called to the Bar of Quebec in 1879. Parc Thomas-Chapais in Montreal is named in his honour. Chapais, Quebec is named for him.