The list of seaplane carriers by country includes seaplane carriers and tenders organized by country of origin and service.

Australia

HMAS Albatross: seaplane tender in service from 1928 to 1933

France

Foudre: Converted Torpedo boat Tender in service as a seaplane carrier from 1914 to 1918 Compinas: Converted merchant ship in service as a seaplane tender from 1915 to 1916 Nord: Converted merchant ship in service as a seaplane tender from 1915 to 1919 Pas-de-Calais: Converted merchant ship in service as a seaplane tender from 1915 to 1919 Rouen: Converted merchant ship in service as a seaplane tender from 1916 to 1919 Petrel-class: Eight light inshore seaplane tenders in service from 1931 into World War II Commandant Teste: Seaplane transport and tender in service from 1932 to 1942 Belfort: Converted Amiens-class sloop in service from 1939 to 1946 Diligente: Converted Friponne-class sloop in service during 1940 Paul Goffeny: Former German tug type seaplane tender in service from 1948 to 1955 Robert Giraud: Former German tug type seaplane tender in service from 1948 to 1963 Marcel le Bihan: Seaplane support ship from 1948 to 1961 Aircraft carrying submarine Surcouf: Aircraft carrying submarine in service from 1934 to 1942

List of seaplane carriers by country

Ethiopia

Training ship Ethiopia

Germany

World War I seaplane carriers

Answald (FS 1) auxiliary seaplane carrier

Santa Elena (FS II) auxiliary seaplane carrier

Oswald (FS III) auxiliary seaplane carrier

Glyndwr auxiliary seaplane carrier

Adeline Hugo Stinnes auxiliary small seaplane carrier

Stuttgart seaplane cruiser

Roon planned seaplane cruiser

Civil Tender type catapult seaplane tenders

Westfalen

Schwabenland

Ostmark

Friesenland

World War II seaplane tenders (Luftwaffe) Sperber catapult seaplane tender Bussard-class catapult seaplane tenders Bussard Falke Krischan-class small seaplane tenders Krischan Gunther Pluschow Bernard Von Tschirschy Hans Rolshoven Karl Meyer-class small seaplane tenders Karl Meyer Max Stinsky Imelmann Boelcke Hans Albrecht Wedel-class small seaplane tenders Hans Albrecht Wedel Richthofen Hermann Kohl Greif small seaplane tender Ex-French Sans Souci-class small seaplane tenders Jupiter/Merkur (SG1) Saturn/Uranus (SG2) Uranus/Saturn (SG3) Merkur/Jupiter (SG4)

List of seaplane carriers by country

Italy

Giuseppe Miraglia seaplane carrier (converted from train ferry shortly after launch), 1923–1950 Europa (1895) (merchantman converted to seaplane carrier) – stricken 1920

List of seaplane carriers by country

Japan

Akitsushima

Kamoi

Chitose-class (2 ships; both were converted to aircraft carriers) Mizuho Notoro Kamikawa Maru-class (4 ships, converted merchantmen) Nisshin I-400-class submarine 3 ships able to carry 3 seaplanes each

Portugal

SS Cubango – cargo ship converted in a seaplane tender in 1931

Spain

Dedalo 9,900 ton ex-German cargo ship Neuenfels 1901, transferred to Spain 1921, converted to seaplane carrier 1922. Scrapped 1 March 1940

Romania

Regele Carol I – passenger steamer leased to Russia during World War I and converted to seaplane tender and minelayer, sunk during World War II in October 1941