SM UB-131 was a German Type UB III submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was commissioned into the German Imperial Navy on 4 July 1918 as SM UB-131. UB-131 was surrendered to the Allies at Harwich on 21 November 1918 in accordance with the requirements of the Armistice with Germany. She was wrecked near Bulverhythe on 9 Jan 21 while in-tow from Harwich to Falmouth to take part in explosive trials. The wreck was sold to F. Ray & Sons on 23 May 1921 for £655, and was broken up in situ.