Sir George Thomas Michael O'Brien KCMG (Chinese: 柯布連) (5 November 1844 – 12 April 1906) was a British colonial official who served as Colonial Secretary of Hong Kong from 1892 to 1895, and as Governor of Fiji and High Commissioner for the Western Pacific from 1897 to June 1901.

He was appointed on 18 October 1890, succeeding W. H. Ravenscroft, and held the office until 31 July 1891.

In 1897, he succeeded John Thurston as Governor of Fiji and High Commissioner for the Western Pacific.

[3] O'Brien Road (柯布連道) in Wan Chai, Hong Kong was named after him.

This article about a person involved in the three branches of government in Hong Kong is a stub.