The Light in the Piazza is a musical with a book by Craig Lucas and music and lyrics by Adam Guettel.

Based on a novella by Elizabeth Spencer, it is set in Florence and Rome in the summer of 1953. A young American tourist, Clara Johnson, meets and falls for young Italian Fabrizio Naccarelli. When Clara's mother Margaret learns of the affair, she opposes it for reasons that only gradually become known to the audience.

The score breaks from the traditional Broadway sound of hummable tunes by veering into the territory of Neoromantic classical music and opera, with unexpected harmonic shifts and extended melodic structures, and is lushly scored for piano, harp, guitar, and strings, alongside a handful of wind and percussionists. The lyrics are unique in that many of them are in Italian and broken English, as many of the characters are fluent only in Italian.