No. 203 Squadron RAF
| No. 203 Squadron RAF | |
|---|---|
| Active |
|
| Country | United Kingdom |
| Branch | Royal Air Force |
| Type | Non-flying squadron |
| Role | Poseidon and Wedgetail line engineering |
| Part of | ISTAR Force |
| Station | RAF Lossiemouth |
| Mottos | Occidens oriensque (Latin for 'West and east') |
| Insignia | |
| Tail codes | PP (Apr 1939 – Sep 1939) NT (Sep 1939 – Mar 1940) CJ (Feb 1945 – Apr 1951) B (Apr 1951 - 1956) 203 (1956 – Sep 1956, Nov 1956 - 1966) |
No. 203 Squadron RAF is a non-flying squadron of the Royal Air Force. Since July 2025, it has provided line engineering to the Poseidon MRA1 fleet based at RAF Lossiemouth.
It was originally formed as No. 3 Squadron Royal Naval Air Service. It was renumbered No. 203 when the Royal Air Force was formed on 1 April 1918.