Joseph Langford Haycock (April 1, 1850 – November 22, 1937)[1] was an Ontario farmer and political figure.
He represented Frontenac in the Legislative Assembly of Ontario as a Liberal-Patrons of Industry member from 1894 to 1898.
He was born in Lennox County, Canada West, the son of Frederick Haycock, who came from England in 1837.
Haycock was reeve of Kingston Township for seven years.
One of Joseph's sons, Alexander Wilkinson Haycock, became a member of the British parliament.