The Territorial Decoration (also known as the Territorial Efficiency Decoration) is a United Kingdom military medal. It is awarded for 12 years' continuous service in the Territorial Army, with wartime service counting double.

The ribbon for the decoration is dark blue and green, with a central stripe of yellow. Officers awarded the medal are entitled to use the letters TD after their name.

References

• Queens Royal Surrey regiment - Territorial Decorations and Medals