The Head of the UK Delegation to the OSCE is the senior member of the United Kingdom's delegation to the Organization for Security and Co-operation in Europe.
This list includes heads of delegation to the predecessor organisation, the Conference on Security and Co-operation in Europe (CSCE), some of whom were also heads of delegation to the conventional arms control negotiations under the auspices of the CSCE that led to the 1990 Treaty on Conventional Armed Forces in Europe.
The UK Delegation to the OSCE is housed in the British Embassy in Vienna. The head of the delegation usually holds the personal rank of Ambassador.
Peter Laurence O'Keeffe was a British diplomat who was ambassador to Czechoslovakia during the Velvet Revolution.
Ian Cameron Cliff is a British diplomat who has been Ambassador to Bosnia and Herzegovina, the Sudan, the OSCE and Kosovo, as well as Chargé d'Affaires in Croatia.