Mahjong (mahjongg, mah-jong, majong, majiang) is originated in China, and spread throughout the world.The basic rule of mahjong is simple and easy to learn, but it also contains numerous changes. We are professional website providing with many different versions of free online mahjong games. We have collected a large number of the most popular mahjong games for you to play on your desktop PC, ipad, iphone and other touch-screen devices. Play free online mahjong games on okmahjong.com now! Updated weekly, and no popups! Enjoy!