| 13th/18th Royal Hussars (Queen Mary's Own) | |
|---|---|
| Active | 9 November 1922 – 1 December 1992 |
| Country |  United Kingdom |
| Branch |  British Army |
| Type | Line Cavalry |
| Role | Formation Reconnaissance |
| Size | One regiment |
| Part of | Royal Armoured Corps |
| Garrison/HQ | Tower Street, York |
| Motto(s) | Viret in aeternum ('May Their Name Flourish Forever') Pro rege, Pro lege, Pro patria conamur ('For King, For Justice, for Country we fight') |
| Commanders | |
| Colonel-in-Chief | Diana, Princess of Wales |
The 13th/18th Royal Hussars (Queen Mary's Own) was a cavalry regiment of the British Army. It was formed by the amalgamation of the 13th Hussars and the 18th Royal Hussars in 1922 and, after service in the Second World War, it amalgamated with the 15th/19th The King's Royal Hussars to form the Light Dragoons in 1992.