Roy Nicolas Courlander,, nicknamed 'Reg', was a British-born New Zealand soldier who became an Unterscharführer in the German Waffen-SS British Free Corps during the Second World War.

The British Free Corps was a unit of the Waffen-SS of Nazi Germany during World War II, made up of British and Dominion prisoners of war who had been recruited by Germany. The unit was originally known as the Legion of St George. Research by British historian Adrian Weale has identified 54 men who belonged to this unit at one time or another, some for only a few days. At no time did it reach more than 27 men in strength.