William Hespeler (December 29, 1830 – April 18, 1921), born Wilhelm, was a German-Canadian businessman, immigration agent, and member of the Legislative Assembly of Manitoba.

His mother was a granddaughter of Count Károly Andrássy de Csíkszentkirály et Krasznahorka (1723–1795),[1] a Hungarian nobleman, and his father was a businessman with the house of Mayer Amschel Rothschild.

He married a Canadian woman and became a naturalized British subject at some time before 1867, adopting the first name of "William".

In 1870 he returned to Baden-Baden, serving briefly as a stretcher-bearer during the Franco-Prussian War before being hired by the Government of Canada as an immigration agent in 1871.

He planned the town of Niverville, Manitoba and (with his son) erected the first grain elevator on the Canadian Prairies.

In 1876 Hespeler was elected alderman for Winnipeg's South Ward and was appointed a Justice of the Peace and a member of the Council of Keewatin.