- Class: Glatton - 2 monitors of 1913
- Displacement: 5,700 tons
- Dimensions: 310 (oa) x 74 x 16 ft.
- Machinery: Triple expansion 2 screws, 4,000ihp = 12 knots
- Armor: Belt 3-7in, bulkheads 3-4in, barbettes 6-8in, turret faces 8in, CT 8in, decks 1-2.5in
- Armament: 2-9.2in, 4-6in, 4-3pdr AA, 2-2pdr AA.
- Complement: 305
- Builder: Elswick
- Laid Down: 26 May 1913
- Launched: 8 Aug 1914
- Completed: 31 Aug 1918
- Notes: Ordered as one of two Norwegian coast defence battleships, the Nidaros and the Bjorgvin, in Jan 1913. Purchased by the British government in Nov 1914. Conversion to British standards begun in Jan 1915, but work deferred to late 1917 before building out to a modified design. The former commissioned as Gorgon in Jun 1918, and the latter as Glatton. On 16 Sep 1918, just days after Glaton arrived at Dover, her midships 6in magazine exploded and she caught fire; she was deliberately torpedoed and sunk when it proved impossible to quell the blaze. Over half her crew were killed or injured.
Gorgon participated in the final bombardments of German positions on the Belgian coast in Oct 1918.