Che Puan Besar Kalsom, the Che Puan Besar and stepmother of the Sultan Tunku Azizah Aminah Maimunah Iskandariah binti Almarhum Sultan Iskandar Al-Haj (Jawi: تونكو عزيزة أمينة ميمونة إسكندرية بنت المرحوم سلطان إسكندر الحاج; born 5 August 1960) is the Tengku Ampuan (Queen consort) of the state of Pahang as the first wife of Al-Sultan Abdullah Ri'ayatuddin Al-Mustafa Billah Shah.

From 1980 to 1986, she studied at Maktab Perguruan Temenggong Ibrahim, Johor Bahru and Political Science and Sociology at National University of Singapore (NUS).

Tunku Azizah Aminah Maimunah Iskandariah has a deep interest in craftwork such as needlework and weaving.

She has generously shared her skills with the establishment of sewing clubs in Kuantan in the early 1990s to teach the finer art of needlework.

Tunku Azizah Aminah Maimunah Iskandariah is also active in the Girl Guides Association and has been appointed to several positions locally and internationally.

She was also nominated as candidate for the post of President of the Associated Country Women of the World, but had to withdraw from the election in April 2019 in Melbourne, Australia due to present commitments and responsibilities.

As many as 493 couples have received fertility treatments that are fully sponsored by the foundation and 115 babies were delivered from these procedures.

As a Tengku Ampuan of Pahang, Tunku Azizah Aminah Maimunah Iskandariah's full style and title in Malay: Kebawah Duli Paduka Baginda Tengku Ampuan Pahang Tunku Azizah Aminah Maimunah Iskandariah binti Almarhum Sultan Iskandar Al-Haj, D.K., D.M.N., S.A.A.S., S.S.A.P., S.I.M.P., D.K.

(Selangor)[3] in English: Her Royal Highness Tunku Azizah Aminah Maimunah Iskandariah binti Almarhum Sultan Iskandar Al-Haj, D.K., D.M.N., S.A.A.S., S.S.A.P., S.I.M.P., D.K.