List of countries in the 1910s

This is a list of countries in the 1910s, giving an overview of states around the world during the period between 1 January 1910 and 31 December 1919. It contains entries, arranged alphabetically, with information on the status and recognition of their sovereignty. It includes widely recognized sovereign states, and entities which were "de facto" sovereign but which were not widely recognized by other states.
Sovereign states.
!width=60%|Name and capital city
!width=70%|Information on status and recognition of sovereignty
A.
Widely recognized independent state from August 8, 1919.
Limited sovereignty for "occupatio bellica" by the Balkan League states. Recognized independent state "de facto" from July 29, 1913.
Widely recognized independent state.
Widely recognized independent state
 Widely recognized state.
Widely recognized independent state
Widely recognized independent state. Australia is autonomous but still dependent from the United Kingdom. Australia had two external territories:
Widely recognized independent state.
 Widely recognized independent state. Austria-Hungary had one concession:
 Widely recognized state.
B.
 Widely recognized state. Belgium had one colony and one concession:
 Widely recognized state.
 Widely recognized state.
 Widely recognized state. Brazil was a federation of 20 states, one territory, and one federal district.
 Widely recognized state.
C.
 Widely recognized state. Canada is autonomous but still dependent from the United Kingdom.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Autonomous state of the Ottoman Empire; "de jure" until December 1, 1913.
 Widely recognized state.
D.
 Widely recognized state. Denmark had two colonies and one dependency:
 Widely recognized state.
E.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
F.
 Widely recognized state. The following are colonies, concessions and protectorates of France:
G.
 Widely recognized state. Immediately recognized by Germany and the Ottoman Empire.
 Widely recognized state. The following are colonies, concessions and protectorates of Germany:
 Widely recognized state.
 Widely recognized state.
H.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Unrecognized state from August 1 to 8, 1919.
I.
 Widely recognized independent state. Still dependent from Denmark.
 Widely recognized state. Italy had four colonies and one concession:
J.
 Widely recognized state. Japan had three dependencies and two concessions:
Japan administered one League of Nations mandate:
K.
 Widely recognized state. Annexed by Japan from August 29, 1910 to April 11, 1919.
L.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state. Limited sovereignty for occupatio bellica.
M.
 Widely recognized state. Mexico had one territory:
 Widely recognized state.
 Widely recognized state. Still dependent from China.
 Widely recognized state. Limited sovereignty for occupatio bellica to December 1, 1918.
 De jure sovereign state under French and Spanish protectorate from 1912.
 Widely recognized state.
N.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state. The Netherlands had two colonies and one possession:
 Widely recognized state. Newfoundland is autonomous but still dependent from the United Kingdom.
 Widely recognized state. New Zealand is autonomous but still dependent from the United Kingdom. The following are territories of New Zealand:
 Widely recognized state.
 Widely recognized state. Norway had three possessions:
O.
 Widely recognized state. Ottoman Empire had one protectorate:
 Widely recognized state.
P.
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
 Widely recognized independent state.
 Client / Puppet state of Germany until November 11, 1918. Widely recognized independent state from November 11, 1918.
 Widely recognized independent state. The following are colonies, vassals and possessions of Portugal:
R.
 Widely recognized state.
 Widely recognized state. Russia had two protectorates, one concession and one autonomous grand duchy:
S.
 Widely recognized state.
 Widely recognized state. Limited sovereignty for occupatio bellica to December 1, 1918.
 Widely recognized state.
 Widely recognized independent state. South Africa is autonomous but still dependent from the United Kingdom.
 Widely recognized state. Spain had three possessions and three colonies:
 Widely recognized state.
 Widely recognized state.
 Widely recognized state.
T.
 "De facto" independent state. Claimed by the Republic of China.
 Widely recognized independent state.
U.
 Widely recognized state. The following are colonies, territories, dependencies and protectorates of the United Kingdom:
 Widely recognized state. The following are territories of the United States of America:
 Widely recognized state.
 Widely recognized state.
V.
 Widely recognized state.
Y.
Widely recognized independent state.
States claiming sovereignty.
 Unrecognized state from 1917.
 Unrecognized Soviet republic.
 Unrecognized state.
 Unrecognized state. Client state of the Hungarian Republic to 1918. Client state of the Kingdom of Serbs, Croats and Slovenes from 1918 to 1919.
 Unrecognized socialist state.
 Partially-recognized state from 1918 to 1919. Puppet/Buffer State of Soviet Russia from January 1, 1919.
 Unoccupied territory within post-World War I Germany.
 Unrecognized state.
 Former unrecognized state.
 Unrecognized state.
 Client state of Germany.
 Self-proclaimed autonomy of the Russian Democratic Federative Republic.
 Unrecognized state.
 Unrecognized, self-declared state.
 Unrecognized state.
 Unrecognized state.
 Semi-Independent state.
 Revolutionary state.
 Nominally-independent provisional government.
 Semi-independent state. Under Russian Protection.
 Microstate.
 Unrecognized state.
 Unrecognized state from December 5, 1918.
 Soviet puppet state from February 17 to July 17, 1919.
 Unrecognized state.
 Puppet state of Soviet Russia.
 Unrecognized state.
 Unrecognized state.
 Puppet state of the Hungarian Soviet Republic.
 Unrecognized provisional government.
 "De facto" independent state not recognized by any other state.
 Unrecognized state.
 Unrecognized state.
 Unrecognized state.
 Unrecognized state.
 Würzburg – Würzburg Soviet Republic (from April 7 to 9, 1919) 
 Zakopane – Republic of Zakopane (from October 13 to November 16, 1918)