Marcus Licinius Crassus Frugi (flourished 1st century BC & 1st century) was a Roman nobleman of consular rank that lived during the Roman Empire. Frugi’s mother was an unnamed Roman woman, while his father was consul and governor Marcus Licinius Crassus. Frugi’s adoptive paternal grandfather was consul and general Marcus Licinius Crassus. Crassus was the grandson of triumvir Marcus Licinius Crassus and the last known direct descendant of his grandfather. He had a sister called Licinia who married the consul, Lucius Calpurnius Piso whom their son, Gaius Calpurnius Piso who was a conspirator against the Roman emperor Nero.