20th Waffen Grenadier Division of the SS (1st Estonian) (, ) was a unit of the Waffen SS established on 25 May 1944 in German occupied Estonia during World War II. Formed in Spring 1944 after the general conscription-mobilization was announced in Estonia on 31 January 1944 by the German occupying authorities, the cadre of the 3rd Estonian SS Volunteer Brigade, renamed the 20th Estonian SS Volunteer Division on 23 January 1944, was returned to Estonia and reformed. Additionally 38,000 men were conscripted in Estonia and other Estonian units that had fought on various fronts in the German Army, and the Finnish Infantry Regiment 200 were rushed to Estonia.