Norman James Macdonald Lockhart (10 April 1884 – 30 August 1974) was a Canadian businessman and politician. Lockhart was a Conservative and Progressive Conservative party member of the House of Commons of Canada.

Lockhart was born in Dunnville, Ontario and became a merchant by career.

The son of Norman Macdonald Lockhart and Charlotte Jane Blott,^[2] Lockhart attended public and high schools in Dunnville. He was a retailer of fuel and building supplies. He served on the St. Catharines, Ontario board of education from 1923 to 1934, and became the community's mayor in 1935.^[1]

He was first elected to Parliament at the Lincoln riding in the 1935 general election under the Conservative party banner and re-elected there in 1940 and 1945, during which time his party became known as the Progressive Conservatives. Lockhart did not stand for another term in office in the 1949 election.