Paul-Antoine Giguère, CC (January 13, 1910 – December 25, 1987) was a Canadian academic and chemist.
Born in Quebec, he received a Bachelor of Science degree from Université Laval in 1931 and a doctorate from McGill University in 1934. He started working in the laboratory of CIL in Beloeil, Quebec and then went to work at the California Institute of Technology with Linus Pauling.
In 1941, he returned to Quebec and became a lecturer at Université Laval. He was appointed a professor in 1947 and was head of the Department of Chemistry from 1956 to 1967.
In 1946 and 1948, he was awarded a Guggenheim Fellowship in chemistry for the investigation of the molecular structure of hydrogen peroxide by the spectroscopic method.
In 1970, he was made a Companion of the Order of Canada for "his research work in physical chemistry". [1] In 1970, he was awarded an honorary Doctor of Science degree from the Université de Sherbrooke.