Type UC III minelaying submarines were used by the Imperial German Navy (Kaiserliche Marine) during World War I.

The ships were double-hulled with improved range and sea-keeping compared to the UC II type.

The type had better seagoing, maneuvering and turning capabilities than its predecessor, while underwater stability was reduced.

[1] A total of 113 Type UC III submarines were ordered by the Imperial German Navy, but only 25 U-boats were completed before the Armistice with Germany in 1918.

[2] There were 16 Type UC III submarines serving with the Imperial German Navy during World War I.