Quintus Fulvius Gillo Bittius Proculus was a Roman senator who held at least one office in imperial service.
A number of scholars have attempted to connect him to the suffect consul of the year 76, Marcus Fulvius Gillo.
"[3] Pliny the Younger refers to him in passing as the stepfather of his second wife, which would make him the husband of Pompeia Celerina.
[4] The other office Proculus is known to have held is proconsular governor of Asia; an inscription at Cyzicus allows his tenure to be dated to 115/116.
It is from the records of this priesthood that we learn he had died by 7 February 120, when Publius Malius Garbo was co-opted to fill the vacancy created by his death.