| Jacques Beaulieu | |
| Birth Date: | 15 April 1932 |
| Birth Place: | Saint-Jean-sur-Richelieu, Quebec |
| Death Place: | Quebec |
| Known For: | invented the TEA laser |
| Occupation: | physicist |
| Education: | McGill University |
| Awards: | Order of Canada National Order of Quebec |
Jacques A. Beaulieu, (April 15, 1932 - August 19, 2014) was a Canadian physicist who invented the first TEA laser in 1968.
In 1978, he was awarded the Royal Society of Canada's Thomas W. Eadie Medal. In 1980, he was made a Fellow of the Royal Society of Canada.
In 1999, he was made a Grand Officer of the National Order of Quebec.
In 2002, he was made an Officer of the Order of Canada in recognition of his "major influence on the development of lasers and their application in the fields of defence and medicine".