The Mahjong of Haruhi-chan Suzumiya (涼宮ハルヒちゃんの雀麻 / Suzumiya Haruhi-chan no Mahjong) is a mah-jong game for the Playstation Portable, developed by Kadokawa Games in 2011.

"The Mahjong Boom is coming!" Because of that typically out of the blue remark from Haruhi, the SOS Brigade decide to begin preparing for the upcoming 'Mahjong Boom'.

As Haruhi's desire begins to transform the world, what will be the fate of Kyon and the rest of the SOS Brigade?!