The Warrant Officer of the Royal Air Force (WORAF), previously known as the Chief of the Air Staff's Warrant Officer (CASWO), is the senior Royal Air Force (RAF) appointment for a warrant officer (WO), and therefore the most senior non-commissioned appointment in the RAF.

[1] The person holding this military appointment advises the Chief of the Air Staff (CAS) on matters concerning airmen and airwomen of the RAF.

[1][2] The post was created in May 1996; 28 years ago (1996-05), as the Chief of the Air Staff's Warrant Officer.

[1][3] The post was re-titled Warrant Officer of the Royal Air Force (WORAF) on 1 July 2021; 3 years ago (2021-07-01), and whilst continuing to report directly to the Chief of the Air Staff, the scope of the WORAF was widened to 'work for the entirety of the RAF'.

[4] The current WORAF is WO Murugesvaran 'Subby' Subramaniam, who was appointed in April 2023; 1 year ago (2023-04).