| Mortimer Montgomery Lee | |
| Birth Date: | 28 May 1846[1] |
| Birth Place: | Farmington, Pennsylvania |
| Residence: | South Norwalk, Connecticut |
| Office: | Mayor of South Norwalk, Connecticut |
| Order: | 18th and 22nd |
| Term Start: | 1901 |
| Term End: | 1902[2] |
| Predecessor: | Charles G. Bohannan |
| Successor: | John J. Cavanagh |
| Term Start2: | 1894 |
| Term End2: | 1896 |
| Predecessor2: | George Lockwood |
| Successor2: | Charles G. Bohannan |
| Office4: | Member of the Connecticut House of Representatives from Norwalk |
| Term Start4: | 1905 |
| Term End4: | 1907 |
| Predecessor4: | Wallace Dann, Jeremiah Donovan |
| Successor4: | William Low, Frederick Quintard |
| Party: | Republican |
| Spouse: | Julia Clarissa Adams (m. June 24, 1885)[3] |
| Children: | Two sons and a daughter: Guy E., Marion M. and Robert M. |
Mortimer Montgomery Lee (May 28, 1846 – July 9, 1931)[4] was a two-term Republican mayor of South Norwalk, Connecticut from 1894 to 1896 and from 1901 to 1902. He also served in the Connecticut House of Representatives from 1905 to 1907.
Lee was born in the town of Farmington, Pennsylvania. He was the son of Alonzo and Almira A. Wright Lee. He received his education at the common schools, and also at Troupsburg Academy, Troupsburg, New York, and Union Academy, Knoxville, Pennsylvania. He became a member of the firm of Haughton & Lee of New York City, importer of lace, in 1880. He was vice-president of the Industrial Savings and Loan Company of New York.