- Rivlin-Ericksen materials
- Rivlin-Ericksen tensor
- Rivne
- Rivonia Trial
- Riwoqê Malu Guojiaji Ziran Baohuqu
- Riwoqê Xian
- Riyal Diplomacy
- Ri-Yi
- Ri Yue
- riyue
- Riyue Qiankun Dao
- Riyue Shan
- Riyue Tan
- Riyue Ting
- Ri Yue Wuxinɡ
- rizalite
- Rizhao Gang
- Rizhao green tea
- Rizhao Museum
- Rizhao Port
- Rizhao Shi
- Rizhao-Yizheng crude oil pipeline
- RI系统
- Ri质粒
- R. J. Baxter