Volterra is a town in Italy.

Volterra may also refer:

• Aaron Ḥai Volterra (fl. 18th century), Italian poet and rabbi
• Daniele da Volterra (1509–1566), Italian painter
• Francesco da Volterra, Italian painter
• Vito Volterra (1860–1940), Italian mathematician

• Lotka–Volterra equations, also known as the predator–prey equations
• Smith–Volterra–Cantor set, a Cantor set with measure greater than zero
• Volterra's function, a differentiable function whose derivative is not Riemann integrable
• Volterra integral equation, a generalization of the indefinite integral
• Volterra operator, a bounded linear operator on the space of square integrable functions, the operator corresponding to an indefinite integral
• Volterra series
• Volterra space, a property of topological spaces

• Volterra (crater), a lunar impact crater on the far side of the Moon
• Volterra Semiconductor, an American semiconductor company
• Project Volterra, a compact desktop PC intended to be used as developer kit from Microsoft