Hugh Havelock MacLean (March 3, 1854 – November 22, 1938) was a Canadian soldier, politician, and the 17th Lieutenant Governor of New Brunswick from 1928 to 1935.

Born in Fredericton, New Brunswick, the son of Lauchlan and Sophia LeBrun Duplissie (Marsh) McLean, McLean was educated at the Fredericton Grammar School.

He was called to the New Brunswick Bar in 1875 and created a King's Counsel in 1899.

[1] He served with the Canadian Militia and was a captain and adjutant for the 62nd Saint John Fusiliers.

[1] He was promoted to colonel and was commander of Canadian Coronation Troops for the coronation of King George V. During World War I, he was appointed officer commanding New Brunswick Troops in April 1915 and in June 1916 he was promoted to brigadier general.