| L. B. Clough | |
| Office: | 57th Mayor of Vancouver, Washington |
| Term Start: | January 1, 1903 |
| Term End: | January 1, 1904 |
| Predecessor: | A. B. Eastham |
| Successor: | E. G. Crawford |
| Office1: | Member of the Washington State Senate |
| Constituency1: | 13th |
| Term Start1: | January 7, 1891 |
| Term End1: | January 9, 1893 |
| Predecessor1: | C. E. Forsyth |
| Successor1: | B. F. Shaw |
| Constituency2: | 12th |
| Term Start2: | November 6, 1889 |
| Term End2: | January 7, 1891 |
| Predecessor2: | Constituency established |
| Successor2: | Jacob T. Eshelman |
| Birth Date: | 12 May 1850 |
| Birth Place: | Waterbury, Vermont, U.S. |
| Death Place: | Vancouver, Washington, U.S. |
| Party: | Republican |
Lynn B. Clough (May 12, 1850 - September 6, 1926) was an American politician in the state of Washington. He served in the Washington State Senate from 1889 to 1893.[1] [2]