| Donald Emerson Lewis | |
| Birth Date: | 14 March 1930 |
| Birth Place: | Entwistle, Alberta |
| Death Place: | Sorrento, British Columbia |
| Office: | MLA for Shuswap |
| Term: | 1972–1975 |
| Party: | British Columbia New Democratic Party |
| Spouse: | Dorothy Irene Wilkinson |
Donald Emerson Lewis (March 14, 1930 – January 12, 1991) was a Canadian politician. He served in the Legislative Assembly of British Columbia from 1972 to 1975, as a NDP member for the constituency of Shuswap.[1] He was defeated by Social Credit candidate Leonard Bawtree when he ran for re-election in the 1975 provincial election.