Konstantinos "Kostas" Chalkias (; born 30 May 1974) is a retired Greek footballer who played as a goalkeeper. Previously he had played for Panathinaikos, Apollon Athens, Iraklis, Portsmouth, Real Murcia, Aris, PAOK and Panachaiki. He was also capped 32 times by the Greece national team, with whom he won Euro 2004. He also was selected at the next two European Championships and the 2010 FIFA World Cup. Club career Greece Chalkias started his career in the Panathinaikos youth academy in the 1994–95 double winning team. He was transferred to feeder club Apollon Athens in 1996 as a replacement for retired Antonis Minou, signing a five-year professional contract. His solid performances helped Apollon avoid relegation from Alpha Ethniki and made him return to Panathinaikos two years later, in 1998. However, he did not get any playing time at Panathinaikos by his head coach Vasilis Daniil and in January 1999 he was re-sent to Apollon on loan for six months. After his return, he was forced to play third keeper to the legendary Jozef Wandzik and Greek legend Antonis Nikopolidis. He made a total of 25 starts over the next three years between 1998 and 2001 for Panathinaikos and was transferred for two seasons to Iraklis before good performances led to a return to Panathinaikos in the 2003–04 season. After playing second fiddle again to Nikopolidis during most of the 2003–04 season, he was allowed back into the first team after a dispute Nikopolidis had with management. Going abroad At the end of the 2003–04 season, Nikopolidis was let out on a free transfer to bitter rivals, Olympiakos, and a new keeper was bought, Mario Galinovic. After a fight for first team football, eventually Galinovic won out and due to overseas interest, Chalkias was shipped out to English side Portsmouth F.C. in January 2005, making his debut in the FA Cup fourth round tie away at fierce rivals Southampton. Over the next few matches Chalkias's wild tactics and inconsistency led to some poorly conceded goals, and he was soon dropped and replaced by Jamie Ashdown. With the signing of Sander Westerveld in July 2005, Chalkias fell even further down the pecking order, and in January 2006 he left Portsmouth by mutual consent, having made only five league appearances for the club. Shortly after his release from Portsmouth he joined Segunda División side Real Murcia. Return to Greece Chalkias was bought in the