Eponyms beginning with R
- Rud’s syndrome
- Ruiter's disease
- Ruiter-Pompen syndrome
- Ruiter-Pompen-Wyers syndrome
- Ruiter’s syndrome
- Rumel tourniquet
- Rumpel-Konchalevskii-Leede phenomenon or sign
- Rumpel-Leede capillary-fragility test
- Rumpel-Leede test
- Rumpel-Leede test
- Rundles-Falls syndrome
- Runge's signs
- Runge's syndrome
- Russel-Krukenberg bodies
- Russell dwarf
- Russell nanism
- Russell syndrome
- Russell's bodies (William Russell)
- Russell's diencephalic syndrome
- Russell's syndrome II (Alexander Russell)
- Russell's syndrome III (Alexander Russell)
- Russell-Silver syndrome
- Rustitskii’s disease
- Ruvalcaba Myhre-Smith syndrome
- Ruvalcaba's syndrome