William Stevens Fielding, PC (24 November 1848 – 23 June 1929) was a Canadian Liberal politician, the seventh premier of Nova Scotia (1884–96), and the federal Minister of Finance from 1896 to 1911 and again from 1921 to 1925.

In 1910, he negotiated a reciprocity or free trade agreement with the United States which led to the government's defeat in the 1911 general election.

Fielding supported the Unionist government of Sir Robert Borden during the Conscription Crisis of 1917 and returned to the House of Commons as a Liberal-Unionist member.

Fielding had widely been seen as Laurier's successor but his split with the party over the conscription issue cost him the 1919 Liberal leadership convention where he lost to William Lyon Mackenzie King by 38 votes.

[2] In 1923, Fielding was sworn into the Privy Council of the United Kingdom allowing him to be styled as Right Honourable, a rare privilege among Canadians who have not served as Prime Minister, Governor-General, or Chief Justice of Canada.