Titus Didius was a general and politician of the Roman Republic. He is credited with the restoration of the Villa Publica, and is notorious for his proconsulship in Hispania Citerior (modern-day Spain). After concluding his service in Spain, Didius served as a legate in the Social War, under Lucius Julius Caesar in 90 BC, then Lucius Porcius Cato and Sulla in 89 BC. Shortly following a successful capture of Herculaneum, he died in battle June 11, 89 BC.