| Regia Marina | Regia Marina |
| regicide | regicidio |
| Regierungsbezirk | Regierungsbezirk |
| regime | régimen |
| regimen | régimen |
| regiment | regimiento |
| regimental | de regimiento |
| regimentation | reglamentación estricta |
| Regin | Regin |
| Regina | Regina |
| Regina Coeli | Regina Coeli |
| Regina Margherita class battleship | Clase Regina Margherita |
| Regina Spektor | Regina Spektor |
| Reginald Arvizu | Reginald Arvizu |
| Reginald Garrigou-Lagrange | Reginald Garrigou-Lagrange |
| Regiomontanus | Johann Müller Regiomontano |
| region | distrito |
| Region Hovedstaden | Hovedstaden |
| Region Midtjylland | Midtjylland |
| Region Nordjylland | Nordjylland |
| Region of Murcia | Región de Murcia |
| Region of Republican Subordination | Dusambé |
| Region Sjælland | Sjælland |
| Region Syddanmark | Syddanmark |
| regional | local |
| regional authority | autoridad regional |
| Regional Building Committee | Salón del Reino |
| Regional Confederation of Mexican Workers | Confederación Regional Obrera Mexicana |
| regional convention | convenios regionales |
| Regional Council | Consejo regional |
| Regional councils of France | Consejo regional |
| Regional county municipality | Municipio regional de condado |
| regional development | desarrollo regional |
| Regional geography | Geografía regional |
| Regional Internet registry | Registro Regional de Internet |
| regional law | derecho autonómico |
| Regional Municipality of Halton | Municipalidad Regional de Halton |
| Regional Municipality of York | Municipalidad Regional de York |
| regional natural park | parque natural regional |
| regional plan | plan regional |
| regional planning | planificación regional |
| regional regulation | normativa regional |
| regional statistics | estadísticas regionales |
| regional structure | estructura regional |
| regionalism | localismo |
| Regionalist Party of Cantabria | Partido Regionalista de Cantabria |
