Spyros Vallas is a Greek football central defender.
Vallas was born on August 26, 1981 in Elassona, Thessaly. He started his football career at SKODA Xanthi in 2000 and, just three years later, was acquired by Olympiakos.
Vallas played three years at Olympiakos but did not become a regular. In the 2007 season he was loaned out to AE Larisa and at the end of the season returned to SKODA Xanthi.
Vallas was capped twice by the National Football Team of Greece, both times as a substitute in friendly games (29/1/03 v. Cyprus and 12/2/03 v. Norway).