This is a list of Royal Air Force Operational Conversion Units. The Operational Conversion Unit (OCU) is a unit that teaches pilots how to fly an aircraft, what tactics to use and how to best exploit the performance of their aircraft.

• No. 226 OCU RAF
• No. 227 OCU RAF
• No. 228 OCU RAF
• No. 229 OCU RAF
• No. 230 OCU RAF
• No. 231 OCU RAF
• No. 232 OCU RAF
• No. 233 OCU RAF
• No. 235 OCU RAF
• No. 236 OCU RAF
• No. 237 OCU RAF
• No. 238 OCU RAF
• No. 240 OCU RAF
• No. 241 OCU RAF
• No. 242 OCU RAF