Clarence Lyell O'Shea, more commonly known as Clarrie O'Shea (1906–1988), was the Victorian State Secretary of the Australian Tramway and Motor Omnibus Employees' Association who was jailed in 1969 by Sir John Kerr for contempt of the Industrial Court when he disobeyed a court order that his union pay $8,100 in fines, under the penal sections of the Conciliation and Arbitration Act. A lifelong Communist, O'Shea was a leading member of the pro-China Communist Party of Australia (Marxist-Leninist) (CPA(ML)) at the time he was imprisoned.