Proculus (or Lucius) Verginius Tricostus was a consul of the Roman Republic in 435 BC. He was possibly re-elected as consul in 434 BC. Verginius belonged to the patrician Verginia gens which had flourished in the early years of the Republic but would fade into obscurity in the early 4th century BC. Verginius was most likely a grandson or great-grandson of Opiter Verginius Tricostus, consul in 502 BC, but as no filiation has survived in our sources it is impossible to trace his descent. If his praenomen is Lucius, there is a possibility that he can be identified as the father to , the consular tribune in 402 BC.