Frank Cousins PC (8 September 1904 – 11 June 1986) was a British trade union leader and Labour politician.
He was appointed National Secretary of Road Transport (Commercial) Group in October 1948, contested the TGWU Assistant General Secretaryship in 1948 and 1955, securing the position on the latter attempt.
Cousins was appointed acting General Secretary of the TGWU in February 1956, due to poor health on the part of Jock Tiffin.
From 1956 to 1969, he was a member of the General Council of the Trades Union Congress and was President of the International Transport Workers' Federation from 1958 to 1960 and 1962 to 1964.
Cousins carried little influence in Wilson's cabinet and resigned on 11 June 1966 to protest against a Government-backed law freezing incomes and prices.