The 3rd Light Cruiser Squadron was a naval formation of light cruisers of the Royal Navy from 1915 to 1922.

Formed in 1915, it was part of the Grand Fleet, the squadron fought at the Battle of Jutland.

The squadron was attached to Battle Cruiser Fleet from February 1915 until November 1916 when that formation was renamed Battle Cruiser Force, it remained attached to BC Force until February 1919.

[1] In April 1919 the squadron was detached to the Mediterranean Fleet.

[2] Post holders included: