Castagnola

Castagnola may refer to:


 * Castagnola-Cassarate, quarter of the city of Lugano, in the Swiss canton of Ticino
 * Castagnola, Switzerland, village on the northern shore of Lake Lugano, Switzerland
 * Castagnola (surname), Italian surname
 * Castagnola's, historical restaurant in San Francisco, California, United States of America