User:User13126789/sandbox/Flags/Flags in 1901

Sovereign states

• 
  Abuja
• 
  Aceh
• 
  Andorra
• 
  Angoche
• 
  Ankole (to 25 October)
• 
  Argentina
• 
  Aro
• 
  Ashanti
• 
  Aussa
• 
  Australia (from 1 January)
• 
  Austria-Hungary
• 
  Bali
• 
  Belgium
• 
  Bhutan
• 
  Bolivia
• 
  Brakna
• 
  Brazil
• 
  Bulgaria
• 
  Busoga
• 
  Canada
• 
  Champasak
• 
  Chile
• 
  China
• 
  Chokwe
• 
  Colombia
• 
  Congo
• 
  Costa Rica
• 
  Damagaram
• 
  Dar al Kuti
• 
  Darfur
• 
  Denmark
• 
  Dhala
• 
  Dominican Republic
• 
  Ecuador
• 
  El Salvador
• 
  Ethiopia
• 
  France
• 
  Geledi
• 
  Germany
• 
  Greece
• 
  Gowa
• 
  Guatemala
• 
  Ha'il
• 
  Haiti
• 
  Honduras
• 
  Italy
• 
  Japan
• 
  Johor
• 
  Kano
• 
  Kasanje
• 
  Kebbi
• 
  Korea
• 
  Liberia
• 
  Liechtenstein
• 
  Luxembourg
• 
  Mbunda
• 
  Mexico
• 
  Monaco
• 
  Montenegro
• 
  Morocco
• 
  Muscat and Oman
• 
  Mutayr
• 
  Netherlands
• 
  Nicaragua
• 
  Norway
• 
  Nri
• 
  Orange Free State
• 
  Oron
• 
  Ottoman Empire
• 
  Paraguay (obverse)
• 
  Paraguay (reverse)
• 
  Pattani
• 
  Persia
• 
  Peru
• 
  Philippines (to 23 March)
• 
  Portugal
• 
  Romania
• 
  Russia
• 
  San Marino
• 
  Serbia
• 
  Setul
• 
  Siam
• 
  Sokoto
• 
  Spain
• 
  Swaziland
• 
  Sweden
• 
  Switzerland
• 
  Tagant
• 
  Transvaal
• 
  Trarza
• 
  United Kingdom
• 
  United States
• 
  Upper Aulaqi Sheikhdom
• 
  Upper Aulaqi Sultanate
• 
  Upper Yafa
• 
  Uruguay
• 
  Venezuela
• 
  Wadai
• 
  Wajoq

Other states

• 
  Chan Santa Cruz (to 5 May)
• 
  Dervish State
• 
  Negros (to 20 August)