Ruga

Ruga may refer to:


 * Ruga (anatomy), an anatomical fold
 * Ruga, Nepal
 * Ruga language, an extinct Sino-Tibetan language that was spoken in Meghalaya, India
 * Ruga-Ruga, irregular troops in Eastern Africa, often deployed by western colonial forces
 * Rugila, 5th-century Hunnic ruler
 * Spurius Carvilius Ruga, 3rd-century Roman grammarian who invented the letter g