William Turnbull Swan (1828–1875) was a 19th century Member of Parliament in Auckland, New Zealand, New Zealand.
He represented the Franklin electorate from 1868 to 1870, when he was defeated (for the Thames electorate).
Wilson, James Oakley (1985) [First ed. published 1913]. New Zealand parliamentary record, 1840-1984 (4 ed.). Wellington: V.R. Ward, Govt. Printer. p. 237. OCLC 154283103.