William Nesbitt (ca 1707 – March 23, 1784) was a lawyer and political figure in Nova Scotia.
The following year he became judge advocate of the vice admiralty court and attorney general.
Nesbitt was named speaker for the provincial assembly in 1759 and served in that post until 1783.
At the outbreak of the American Revolution, Nesbitt presided over the trial for treason of the future attorney general Richard John Uniacke after he participated in the Eddy Rebellion.
Portraits of Nesbitt and his wife hung in the King's College Library, Windsor (1920), which was destroyed by fire the same year.