- 3 Royal Arms (Connecticut)
- 5 Royal General Theatrical Fund Association
- 1 Royal houses
- 2 Royal Insurance Co.
- 3 Royal Literary Fund
- 3 Royal Opera House, Covent Garden London
- 1 Royal Porcelain Works
- 1 Royal Prussian Porcelain Co.
- 1 Royers Carriage Factory
- 10 Royersford, Pennsylvania
- 2 Rubber (materiaal)
- 2 Rubber plants
- 1 Rubberized cloth
- 3 Rubbish
- 3 Rubble
- 2 Rubenstein, Joseph
- 3 Rudersdorff, Hermine, 1822-1882
- 2 Rudolph Koenig (Firm)
- 5 Ruffs
- 18 Rugs
- 131 Ruins
- 2 Rulers (Instruments)
- 4 Rules (instructions)
- 1 Rules and practice
- 1 Rumelia
- 1 Rumford Chemical Works
- 1 Rumor
- 1 Rumors of revolution
- 1 Rumpelstiltskin (Folk tale)
- 1 Rumrunners
- 1 Rumsey & Co., Ltd.
- 1 Runge Cigar Shop
- 2 Runge, Gustav, 1822-1900, Architect
- 4 Running (physical activity)
- 7 Runways (airport runways)
- 23 Rural areas
- 1 Rusden, George William, 1819-1903
- 1 Russ, Robert.
- 1 Russell, John
- 1 Russell, Lillian, 1861-1922
