Bonassola ( ) is a comune (municipality) in the Province of La Spezia in the Italian region Liguria, located about southeast of Genoa and about northwest of La Spezia. As of 31 December 2004, it had a population of 945 and an area of .
The municipality of Bonassola contains the frazioni (subdivisions, mainly villages and hamlets) Montaretto, Costella, Serra, Scernio, and San Giorgio.
Bonassola borders the following municipalities: Framura, Levanto.
During World War II, two American fifteen men missions tried to land and blow up a railway tunnel between Framura and Bonassola. Both missions failed; the second mission's soldiers were executed and buried in a mass grave by the German Army.