47 selected
- Rarotonga
- Ras al-Khaimah
- Réunion
- Rhineland-Palatinate - French Zone
- Rhodesia
- Rhodesia and Nyasaland
- Rio de Oro
- Rio Muni
- Romania
- Romania - Cinderella
- Romania - Occupation of Hungary Cluj
- Romania - Occupation of Hungary Debreczen
- Romania - Occupation of Hungary Oradea
- Romania - Occupation of Ukraine
- Ross Dependency
- Ross Dependency - King Edward VII Land
- Rouad
- Ruanda-Urundi
- Rumania - Occupation of Temesvár
- Russia [1857-1917]
- Russia [1866-1919] - Zemstvo
- Russia [1918-1923]
- Russia [1918-1923] - Civil war zones
- Russia [1920-1922] - Far Eastern Republic
- Russian Federation
- Russian Federation - Altai - Illegal Stamps
- Russian Federation - Amur Oblast - Illegal Stamps
- Russian Federation - Bashkortostan - Illegal Stamps
- Russian Federation - Buryatia - Illegal Stamps
- Russian Federation - Chechnya - Illegal Stamps
- Russian Federation - Chuvashia - Illegal Stamps
- Russian Federation - Dagestan - Illegal Stamps
- Russian Federation - Ingushetia - Illegal Stamps
- Russian Federation - Jewish Autonomous Oblast - Cinderella
- Russian Federation - Kalmykia - Illegal Stamps
- Russian Federation - Kamchatka - Illegal Stamps
- Russian Federation - Karelia - Illegal Stamps
- Russian Federation - Komi - Illegal Stamps
- Russian Federation - Mordovia - Illegal Stamps
- Russian Federation - North Ossetia–Alania - Illegal Stamps
- Russian Federation - Sakha - Illegal Stamps
- Russian Federation - South Ossetia - Illegal Stamps
- Russian Federation - Tatarstan - Illegal Stamps
- Russian Federation - Udmurtia - Illegal Stamps
- Rwanda
- Rwanda - Illegal Stamps
- Ryukyu Islands
- Not filled in