- Rominger, C.L.1
- Rose, E.1
- Roser, C.1
- Ross, John, lieutenant1
- Rotxoll, F. C.1
- Royal Geographical Society (Great Britain)1
- Ryūtei Gyofu Sasui, active 19th century.1
- Sagamiya, Tahē1
- Sakai, Sutehiko.1
- Sanborn Map Company1
- Santini, P. (Paolo)1
- Sauer Bros. and Frydrych.1
- Schenk, Petrus, 1660-1718 or 9.1
- Scherer, Heinrich, 1628-1704.1
- Schlatter, Wm. (William)1
- Schneider, Adam Gottlieb, 1745-1815.1
- Scott Stamp & Coin Company, Limited1
- Scott, Joseph (Geographer). United States gazetteer.1
- Seale, Richard William1
- Seco, Fernando Alvares1