The Corpus Agrimensorum Romanorum (Corpus of Roman Land Surveyors) is a Roman book on land surveying which collects works by Siculus Flaccus, Frontinus, Agennius Urbicus, Hyginus Gromaticus and other writers, known as the Gromatici or Agrimensores ("land surveyors"). The work is preserved in various manuscripts, of which the oldest is the 6th or 7th-century Codex Arcerianus.