| David Whiteside | |
| Birth Date: | 6 February 1870 |
| Birth Place: | Scarborough Township, Ontario, Canada |
| Death Place: | Coquitlam, British Columbia, Canada |
| Office: | MLA for New Westminster |
| Term: | 1916–1924 |
| Successor: | Edwin James Rothwell |
| Party: | Liberal Party of British Columbia |
| Profession: | lawyer, judge |
| Spouse: | Annie Clarke Richmond (m. 1903) |
| Children: | two |
David Whiteside (February 6, 1870 – March 8, 1947) was a Canadian politician. He served in the Legislative Assembly of British Columbia from 1916 to 1924, as a Liberal member for the constituency of New Westminster.[1] While he did not seek re-election in the 1924 provincial election, he did run unsuccessfully as a BC Liberal candidate in the 1928 provincial election in the Dewdney constituency and as an Independent candidate endorsed by the Independent Co-operative Commonwealth Federation association in the 1933 provincial election in the New Westminster constituency.
Born in the Toronto suburb of Scarborough Township, Ontario, he was a lawyer and judge, educated at Osgoode Hall Law School and first called to the Ontario Bar in 1895. Moving to British Columbia in 1899, he first settled in Rossland, British Columbia, then Phoenix, British Columbia. He practiced law with James Alexander MacDonald under the firm Macdonald & Whiteside in Grand Forks, British Columbia from 1902 to 1909. He practiced under the firm Whiteside, Edmonds & Whiteside in New Westminster starting in 1912 until 1925, when he entered the practice of McQuarrie, Whiteside & Duncan. In 1938, he was appointed as a judge on the County Court Bench.[2] He died in Coquitlam in 1947.[3]