Thomas LeRoy Armstrong (31 December 1936 – 27 April 2022) was a Canadian businessman and politician.
He was the member of the Legislative Assembly of New Brunswick for the riding of Kings East.
In his youth he worked in the forestry, rail and grocery businesses before moving to Apohaqui, New Brunswick in 1965 and founding a trucking operation, which he merged into a larger operation in 1985 called Kingsco.
Armstrong was re-elected in 2003 and served for the duration of the 55th New Brunswick Legislative Assembly as opposition critic for agriculture.
He died on 27 April 2022, at the Saint John Regional Hospital at the age of 85.