Charidimos (Harry) Demetriou (born 20 August 1958 in London) is a Greek Cypriot-British poker player.

[1] He finished in 18th place in the 2004 WSOP Main Event, where he became annoyed with the belligerent attitude of Josh Arieh.

[2] At the 2005 WSOP, he finished as the runner-up in the $2,500 short-handed no limit hold'em event, receiving $163,850 when his Q♣ 9♠ failed to improve in the final hand against Isaac Galazan's K♥ J♠ on a board of 8♦ 5♦ 4♦ 5♠ 2♥.

Demetriou made the final table of the World Poker Tour (WPT) season 2 Invitational event, finishing in fifth place.

[5] Demetriou made a second WPT final table in season 5, finishing runner-up when his K♥ 6♣ was outdrawn by Stanley Weiss' K♠ 5♦.