Owen Tudor is the Secretary of the Commonwealth Trade Union Group which brings together 70 million workers in 46 Commonwealth countries and a member of the Executive Board of the Commonwealth Human Rights Initiative UK and the international board of CHRI. He is a steering committee member for the Independent Forum of Commonwealth Organisations which brings together accredited organisations.

He is a former Deputy General Secretary of the International Trade Union Confederation (2018-2024) where he led on worker safety, peace and tax, as well as human resources and finances. He worked for the TUC in Great Britain from 1984 to 2018, latterly as Head of the EU and International Relations Department, covering international solidarity, trade and migration policy, global supply chains and Brexit, as well as Commonwealth issues. During his career at the TUC he had previously led on youth, training, disability and social insurance. health and safety, disability and industrial injury compensation.

He represented the TUC on the tripartite Industrial Injuries Advisory Council, Social Security Advisory Committee and the Health and Safety Commission. He was also a founder member of the Civil Justice Council, a Director of the Ethical Trading Initiative, a Director of the Occupational and Environmental Diseases Association, and has held Trustee positions at the British Occupational Health Research Foundation, the Royal National Institute for Deaf people (RNID), and the Ethics Committee of the Faculty of Occupational Medicine.