Lucius Caesonius Lucillus Macer Rufinianus (c. AD 195 – c. AD 255) was a Roman military officer and senator who was appointed suffect consul possibly between AD 225 and 229.
Caesonius Lucillus was the son of Gaius Caesonius Macer Rufinianus and a member of the third century gens Caesonia which was elevated to Patrician status during his time in politics. He began his career probably at the beginning of the reign of Caracalla as a member of the Vigintiviri, operating as a Decemvir stlitibus judicandis. Standing and appointed as an imperial candidate for the office of Quaestor probably towards the end of Caracalla’s reign (c. AD 215/217), this was immediately followed by his appointment as praetor candidatus probably under Elagabalus, in around AD 220/222. This career path from Quaestor to Praetor as an imperial candidate was standard for a patrician’s ascent up the Cursus Honorem during the third century.
Following in his father’s steps, Caesonius Lucillus was appointed curator of a number of Italian cities. Immediately after his praetorship, he served as Curator rei publicae Suessanorum in Campania; this was followed by a curatorship at either Puteoli (also in Campania), or at Tusculum in Latium. Then probably sometime between AD 225 and 228, he was appointed Legatus Africae eodem tempore vice proconsulis (or the deputy governor of Africa Proconsularis). Around this same time (AD 226 – 229), the emperor Alexander Severus appointed him consul suffectus.