Sir Henry Cowper Gollan CBE KC (8 January 1868 – 5 August 1949) was a British lawyer and judge.

He served as attorney general and chief justice of a number of British colonies in the early 20th century.

He obtained his Master of Arts degree from the University of Edinburgh in 1887 and was called to the bar by the Middle Temple in January 1891.

In 1900, presumably on Lugard's recommendation, Gollan was appointed attorney-general and later chief justice of Northern Nigeria in 1901.

In that capacity he served on a Special Commission of Judges in Shanghai made up of Gollan, Justice Finley Johnson (presiding) of the Philippines and Justice Kisaburo Suga of the Hiroshima Court of Appeal to inquire into the killings of Chinese protesters on 30 May 1925 in Shanghai that triggered the May 30 Movement.