| Office: | Canadian Senator from Saskatchewan |
| Term Start: | May 26, 1993 |
| Term End: | November 10, 2008 |
| Nominator: | Brian Mulroney |
| Appointed: | Ray Hnatyshyn |
| Riding1: | Souris—Moose Mountain |
| Parliament1: | Canadian |
| Term Start1: | May 22, 1979 |
| Term End1: | May 25, 1993 |
| Predecessor1: | Ralph Goodale |
| Successor1: | Bernie Collins |
| Birth Name: | Lenard Joseph Gustafson |
| Birth Date: | 10 November 1933 |
| Birth Place: | Macoun, Saskatchewan, Canada |
| Death Place: | Midale, Saskatchewan, Canada |
| Party: | Progressive Conservative Conservative |
| Occupation: | Farmer, contractor, businessman |
Lenard Joseph Gustafson, PC (November 10, 1933 – March 18, 2022) was a Canadian politician from Saskatchewan. Gustafson served in the Senate of Canada and House of Commons of Canada.
Born in Macoun, Saskatchewan, Gustafson was a farmer, contractor and businessman, before he was elected to the House of Commons of Canada in the 1979 general election as the Progressive Conservative Member of Parliament for Assiniboia, Saskatchewan. He did not serve in the short-lived government led by Prime Minister Joe Clark.
He was re-elected in 1980, 1984, and 1988. Gustafson served as parliamentary secretary to Prime Minister Brian Mulroney from 1984 until shortly before Mulroney left office. In May 1993, shortly before his retirement, Mulroney appointed Gustafson to the Senate of Canada, where he sat as a Progressive Conservative and, since February 2004, as a Conservative. He retired from the Senate upon reaching the mandatory retirement age of 75 on November 10, 2008. On January 8, 2009, it was announced that Gustafson was appointed to the Privy Council on the advice of Prime Minister Stephen Harper.
Gustafson died on March 18, 2022, in Midale, Saskatchewan.[1]