Ismoil Somoni Peak (Tajik: Қуллаи Исмоили Сомонӣ, Qullai Ismoili Somonī; Russian: пик Исмаила Самани pik Ismaila Samani) is the highest mountain in Tajikistan and in the former Russian Empire and later in the Soviet Union, named after Ismail Samani, the greatest ruler of the Samanid dynasty.