Gaius Coelius Caldus

Gaius Coelius Caldus, nomen also spelled Caelius, was a consul of the Roman Republic in 94 BC alongside his colleague Lucius Domitius Ahenobarbus.

In 107 BC, Coelius Caldus was elected tribune of the plebs and passed a lex tabellaria, which ordained that in the courts of justice the votes should be given by means of tables in cases of high treason.Cicero stated that Caldus regretted this law as having been the source of injury to the republic. He was a praetor in 100 or 99 BC, and proconsul of Hispania Citerior the following year. During Sulla's second civil war he tried in conjunction with Gaius Carrinas and Brutust help Gaius Marius the Younger by preventing Pompey from joining his forces to Sulla, but failed.

Coelius' portrait appears on a small series of Roman silver coins from the late republic. Some of his coins feature the boar emblem of Clunia.