This is a list of aircraft types having triplane wings.
! Type
! Country
! Date
! Role
! Status
! Notes
|-
|Albatros Dr.I || Germany || 1917 || Fighter || Prototype || Based on the Albatros D.V biplane. |- |Albatros Dr.II || Germany || 1918 || Fighter || Prototype || Based on the Albatros D.X biplane. |- |American Flea || USA || data-sort-value="1939.5"|c. 1939 || Private || Homebuilt || Triplane variant of the Mignet Pou du Ciel. Lower wing plane is all-moving ailerons. |- |Armstrong Whitworth F.K.5 || United Kingdom || 1915 || Fighter || Prototype || Never flown. Middle wing longer span than the others. |- |Armstrong Whitworth F.K.6 || United Kingdom || 1916 || Fighter || Prototype || Middle wing longer span than the others. |- |Astoux-Vedrines || France || data-sort-value="1916.5"|c. 1916 || Experimental || Prototype || Wing incidence could be varied in flight. |- |Austin Osprey || United Kingdom || 1918 || Fighter || Prototype || |- |Aviatik 30.24 || Austria-Hungary || 1917 || Fighter || Prototype || Based on the Aviatik (Berg) D.I biplane. |- |Avro 547 || United Kingdom || 1920 || Transport || Prototype || 2 built. Based on the Avro 504, with a third wing added. |- | Battaille Triplane || Belgium || 1911 || || Prototype || Designed by . Several short flights or hops. |- |Bell Oionus I || Canada || 1910 || Experimental || Prototype || Failed to fly. Triplane variant of Bell's octahedral wing. |- |Berliner Helicopter No.5 || USA || 1923 || Experimental || Prototype || In 1923, the Helicopter incorporated triplane wings to allow for gliding in case of an engine failure. |- |Besson H-3 || France || 1921 || Private || || or Besson MB.12 |- |Besson H-5 || France || 1922 || Transport flying boat || Prototype || |- |Besson H-6 || France || 1921 || Patrol || || Mailplane. Lower wing the largest and top wing the smallest. |- |Besson LB || France || 1919 || Patrol || || Flying boat |- |Besson HB.2 || France || || || || |- |Besson MB-10 || France || || || || |- |Besson MB-11 || France || || || || |- |Besson Hydravion école || France || 1919 || || || Flying boat, exhibited at the 1919 Paris Aero Show. |- ||Blackburn Triplane || United Kingdom || 1917 || Fighter || Prototype || Pusher propeller and boom-mounted empennage to allow an upwards-firing 2-pounder recoilless gun. |- |Boeing GA-1 || USA || 1920 || Attack || Production || Heavily armoured twin. 10 ordered, not operational. |- | Bousson-Borgnis triplane || France || 1908 || || Bomber || Canard. Failed to fly. |- ||Bristol Braemar || United Kingdom || 1918 || Bomber || Prototype || Mk II flown in 1919. |- ||Bristol Pullman || United Kingdom || 1920 || Transport || Prototype || The Bristol Pullman 14-seat transport variant flew in 1920. |- ||Bristol Tramp || United Kingdom || 1921 || Transport || Prototype || 2 built, never flown. |- | Caproni Ca.4 || Italy || 1914 || Bomber || Production || Military designation of a line of bombers which would also see airliner variants. Types include the Ca.40,41,42,43,48,51,52,58,59. |- |Caproni Ca.40 || Italy || 1914 || Bomber || Prototype || 3 built. |- |Caproni Ca.41 || Italy || 1918 || Bomber || Production || Re-engined Ca.40. |- |Caproni Ca.42 || Italy || 1918 || Bomber || Production || Re-engined Ca.41. |- |Caproni Ca.43 || Italy || 1918 || Bomber || Prototype || Floatplane variant of the Ca.4. |- |Caproni Ca.48 || Italy || 1919 || Transport || || Converted from surplus Ca.42. |- ||Caproni Ca.49 || Italy || 1919 || Transport || Project || Seaplane. |- |Caproni Ca.51 || Italy || || Bomber || || Ca.42 variant with biplane tail and tail gun. |- |Caproni Ca.52 || Italy || 1918 || Bomber || Production || Ca.42 built for the RNAS. Six built. |- | Caproni Ca 53 || Italy || 1917 || Bomber || Prototype || 1 completed, never flown. Preserved in the Gianni Caproni Museum of Aeronautics. |- | Caproni Ca.54 || Italy || 1919 || Transport || || Conversion of the Caproni Ca 53. |- | Caproni Ca.55 || Italy || 1920 || Transport || || Seaplane derived from the Caproni Ca 54. |- |Caproni Ca.58 || Italy || || Transport || || Ca.48 re-engined with Fiat A.14 or Isotta Fraschini V.6. |- |Caproni Ca.59 || Italy || || Transport || Project || Designation of Ca.58 intended for customers outside Italy. |- | Caproni Ca.60 || Italy || 1921 || Transport || Prototype || The "Noviplano" was a triple tandem triplane which crashed on its maiden flight. |- | Caproni-Pensuti triplane || Italy || 1920 || Private || || |- ||Catron & Fisk CF-10 || USA || data-sort-value="1925.5"|c. 1925 || Transport || || |- |Curtiss 18-T || USA || 1918 || Fighter || Production || Known variously as the "Wasp" and the "Kirkham". |- |Curtiss Autoplane || USA || 1917 || Private || Prototype || Flying car.