Lex Cornelia

refers to any ancient Roman law () sponsored by an official whose gens name was Cornelius, particularly Sulla. Known examples of a lex Cornelia include:

• Lex Cornelia de iniuriis
• Lex Cornelia de praetoribus
• Lex Cornelia de proscriptione
• Lex Cornelia de provinciis
• Lex Cornelia de repetundis
• Lex Cornelia de sicariis et veneficis
• Lex Cornelia de maiestate
• Lex Cornelia de XX Quaestoribus