ClubLocationLeagueTierFounded
RACS Couillet—Dissolved 2009—1919
Racing Club—Liga AUF Uruguaya—1919
Racing Club Warwick—United Counties League - Premier Division South—1919
Racing Ferrol—Primera Federación - Grupo 1—1919
Radnički Zrenjanin—Srpska Liga Vojvodina—1919
Rather SV—Kreisliga B Düsseldorf—1919Real Murcia—Primera Federación - Grupo 2—1919
Reggiana—Serie B—1919Rhenania Bottrop—Bezirksliga Oberhausen-Bottrop—1919
Rio Branco-AC—Campeonato Acreano - 1ª Divisão—1919Rio Preto—Campeonato Paulista - Série A3—1919
Rohožník—IV. Liga - BFZ—1919Rossington Main—Northern Counties East League - Premier Division—1919Rot-Weiß Leithe—Kreisliga B Bochum—1919Rotenburger SV—Landesliga Lüneburg—1919Rovereto—Eccellenza Trentino-Alto Adige—1919
Rovinj—4. NL Rijeka—1919
Ruch Radzionków—IV Liga - Śląskaa—1919Rymer Rybnik—Klasa A - Rybnik—1919
Rätia Bludenz——1919