| Honorific-Prefix: | The Hon. |
| Margaret Jean Anderson | |
| Office: | Senator for Northumberland-Miramichi, New Brunswick |
| Appointed: | Pierre Trudeau |
| Term Start: | March 23, 1978 |
| Term End: | August 7, 1990 |
| Birth Date: | 7 August 1915 |
| Birth Place: | Burnt Church, New Brunswick |
| Death Place: | Miramichi, New Brunswick |
| Party: | Liberal |
| Relations: | William Stafford Anderson, father |
Margaret Jean Anderson (August 7, 1915 - December 8, 2003) was a Canadian businesswoman and senator.
Born in Burnt Church, New Brunswick, she was president of the family business, W.S. Anderson and Company Ltd., a lumber company.
From 1972 to 1976, she was president of the New Brunswick Women's Liberal Association.
In 1978, she was summoned to the senate on the advice of Pierre Trudeau representing the senatorial division of Northumberland--Miramichi, New Brunswick. She sat as a member of the Liberal Party of Canada and retired at the age of 75 in 1990.
Anderson was also a member of the Miramichi Historical Society, past president of the UCW, former member of the Newcastle Curling Club and member of the St. James & St. John's United Church.[1]
Anderson died in Miramichi, New Brunswick on December 8, 2003 [1]