Tirot Sing, also known as U Tirot Sing Syiem born in the year 1802 and died in the year 1835, was one of the chiefs of the Khasi people in the early 19th century. He drew his lineage from the Syiemlieh clan. He was Syiem (chief) of Nongkhlaw, part of the Khasi Hills. His surname was Syiemlieh. He was a constitutional head sharing corporate authority with his Council, general representatives of the leading clans within his territory. Tirot Sing declared war and fought against British for attempts to take over control of the Khasi Hills.