Mount Jerai, formerly Kedah Peak, is a mountain in Kedah, Malaysia with the height of 3,854 feet (1,175 m). Within Kedah itself, the mountain stands at the border of Kuala Muda and Yan districts. The mountain is a massive limestone outcrop and is a lone feature from the surrounding geography of the area. There is an information board on top of the mountain stating that it used to be an island called Pulai Serai before the sea levels receded letting it form a mountain. This is probably supported by I Ching's record of Pu Lou Shi (Pulau Sri), a country located west of Sribogha.

Gunung Jerai has what's coming to its of history and interesting stories. Legend has it that Raja Bersiong, the 'ruler of teeth', once had his old kingdom inside the Bujang Valley, at the foot of the mountain. Late archeological discoveries uncovered the presence of the "Sanctuary of the Ninth Water Pool"; many trust that it was Raja Bersiong's private pool.

Mount Jerai is one of the mount that you must visit when you travel to Kedah. You will be able to see a nice view on top of the mountain by driving up.