| Province: | Ontario |
| Fed-Status: | defunct |
| Fed-Created: | 1903 |
| Fed-Abolished: | 1924 |
| Fed-Election-First: | 1904 |
| Fed-Election-Last: | 1921 |
Lennox and Addington was a federal electoral district represented in the House of Commons of Canada from 1904 to 1925. It was located in the province of Ontario. This riding was first created in 1903 from Addington and Lennox ridings. It consisted of the county of Lennox and Addington.
The electoral district was abolished in 1924 when it was redistributed between Frontenac—Addington and Prince Edward—Lennox ridings.
This riding has elected the following members of Parliament:
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