Colman Patrick Louis Macaulay (16 September 1849 – 3 May 1890) CIE was an administrator in British India and partly responsible for negotiating the opening of British trade with Tibet.
Macaulay was born in Belfast, Northern Ireland to Patrick Macaulay J.P. and the youngest daughter of Bernard Coleman, a Catholic from the West of Ireland. From the age of nine, he was educated at Ratcliffe College near Leicester, England and later at the School of the Jesuit Fathers in Randalstown, County Antrim, before graduating from Queen's College in Belfast.
In 1867, Macaulay passed the Indian Civil Service entrance examination and was sent to Bengal, in the north east of India as one of those selected by Sir George Campbell to test his theory that civilians should serve in all branches of the administration. After serving as District Inspector in Bacoorah he was appointed assistant secretary in the Bengal office in 1875. In May 1990 he became financial secretary to the Government of Bengal and was complemented on his efficiency by the Marquis of Rippon. Macaulay attracted the attention of Sir Richard Temple, Lieutenant-Governor of the Bengal Presidency, and was assigned to famine relief in the Burdwan division in 1874. In 1882, Macaulay submitted a bill for the extension of local self-government to the Bengal Legislative Council. He proposed that elected villager committees would manage their own pounds, schools and roads in a similar fashion to the Local Government Boards of contemporary Britain.