Calpurnia (1st century BC), daugther of Lucius Calpurnius Piso Frugi, was a Roman woman, third and last wife of Julius Caesar. They married in 59 BC. Following Caesar's death in the Ides of March (March 15) of 44 BC, Calpurnia delivered all Caesar's personal papers, including will and notes, and most precious possessions to Marcus Antonius.


In botany, Calpurnia is a genus in Fabaceae.