The gens Attia was a plebeian family at Rome, which may be identical with the gens Atia, also sometimes spelled with a double t. This gens is known primarily from two individuals: , a physician to Augustus, and another physician of the same name, who probably lived later during the first century AD, and may have been a son of the first. A member of this family rose to the consulship in the early second century, but his career is known entirely from inscriptions.