United States of America (5 places)
- Woodrow Wilson, President of the United States
- Robert Lansing, Secretary of State
- Henry White
- Edward House
- General Tasker H. Bliss
British Empire Great Britain (5 places)
- David Lloyd George, Prime Minister
- Arthur James Balfour
- A. Bonar Law
- G. N. Barnes
- Viscount Milner
- Winston Churchill
British Empire Canada (2 places)
- Sir Robert Borden
- Sir George Foster
- C. J. Doherty
- A. L. Sifton
British Empire Australia (2 places)
- W. Hughes
- Sir Joseph Cook
British Empire South Africa (2 places)
- General Louis Botha
- Lieut. General J. C. Smuts
British Empire New Zealand (1 place)
- W. F. Massey
- Sir Joseph Ward
British Empire Newfoundland
- Sir William F. Lloyd
- Sir William Goode (alternate)
British Empire India (2 places)
- E. S. Montagu
- Major General the Maharajah of Bikaner
- Lord Sinha
France (5 places)
- Georges Clemenceau
- Pichon
- L-L. Klotz
- André Tardieu
- Jules Cambon
- Marshal Foch
Italy (5 places)
- V. E. Orlando
- Baron S. Sonnino
- Marquis G. F. Salvago Raggi
- A. Salandra
- S. Barzilai
Japan (5 places)
- Marquis Saionji
- Baron Makino
- Viscount Chinda
- K. Matsui
- H. Ijuin
Belgium (3 places)
- Hymans,
- van den Heuvel
- Vandervelde
Bolivia (1 place)
- Ismaël Montes
Brazil (3 places)
- Epitacio Pessõa
- Olyntho de Magalhaes
- Pandii Calogeras
- Raoul Fernandes
China (2 places)
- Lou Tseng-tsiang
- Cheng-ting Thomas Wang
- Vi Kyuin Wellington Koo
- Sao-Ke Alfred Sze
- Suntchou Wei
Cuba (1 place)
- Antonio Sanchez de Bustamante
Ecuador (1 place)
- Dom y de Alsua
- Dr. Carlos R. Tobar
Greece (2 places)
- Eleftherios Venizelos
- Nicolas Politis
- A. Romanos
Guatemala (1 place)
- Joaquín Méndez
Haiti (1 place)
- Tertullien Guilbaud
Hedjaz (2 places)
- His Royal Highness Emir Feisal
- Rustem Haidar
Honduras (1 place)
- Dr. Policaxpo Bonilla
Liberia (1 place)
- C. D. B. King
- C. B. Dunbar
- H. F. Worley
Nicaragua (1 place)
- Salvador Chamorro
Panama (1 place)
- Antonio Burgos
Peru (1 place)
- Carlos G. Candamo
- Francisco Garcia Calderon
- V. Maurtua
Poland (2 places)
- Roman Dmowski
- Ignace Paderewski,
- Casimir Dluski (alternate)
Portugal (2 places)
- Dr. Affonso Costa
- Augusto Soares
- Colonel Norton de Mattos
- Alfredo Freire de Andrade
- Jayme Batalha-Reis
Roumania (2 places)
- Jean J. C. Bratiano
- General Constantin Coanda
- Dr. Vaida-Voevod
- Nicolas Misu
- Victor Antonesco
- Constantin Diamandy
- Georges Danielopol
Serbia (3 places)
- N. P. Pachitch
- Ante Trumbi
- Milenko R Vesnitch
- Ivan Zolger
- Mathias Boshkovitch
- Otokar Rybar
- Josip Smodlaka
Siam (2 places)
- Prince Charoon
- Prince Traidos Prabandhu
- Phya Bibadh Kosha
Czecho-Slovak Republic (2 places)
- Charles Kramar
- Edouard Benes
Uruguay (1 place)
- Juan Antonio Buero
- Jacobo Varela Acevedo
- Juan Carlos Blanco