John Lineham

John Lineham (21 March 1857 – 21 April 1913) was a territorial-level politician from Northwest Territories, Canada.

Lineham was elected to the Legislative Assembly of the Northwest Territories in the 1888 Northwest Territories general election. He won the top place in the two-man district of Calgary. There were three candidates running for the two seats. Hugh Cayley was returned to the legislature as the second-place candidate. Lineham and Cayley were re-elected by acclamation in the 1891 Northwest Territories general election.

The electoral district was abolished and Lineham ran in the new High River electoral district in the 1894 Northwest Territories general election. He was easily re-elected and served his final term. He did not run for office after the assembly dissolved in 1898.

Lineham would contest the November 1886 Calgary municipal election garnering 172 votes, but ultimately losing to George Clift King by 23 votes. In 1909 Lineham would be elected Mayor of Olds, Alberta for a period of two years.

He died in Calgary on 21 April 1913.