Isatay Taymanuly (Kazakh: Исатай Тайманұлы, Isatai Taimanūly; Russian: Исатай Тайманов, romanized: Isatay Taymanov; 1791 – July 12, 1838) was a Kazakh hero (батыр "batır"^{[clarification needed]}) and leader (with his friend Makhambet Utemisuly) of a rebellion against Zhangir-Kerey Khan of Bukey Horde and the Russian rulers of Kazakhstan in the 19th century.

The rebellion began in late 1836 and the beginning of 1837.^{[clarification needed]}

Isatay was killed in fighting near the Aqbulaq River on July 12, 1838. According to Baymirza Hayit's book "Turkistan: Between Russia and China" after his army was defeated, Isatay Batir got into a sword fight against seven Russian Cossack soldiers; eventually he got overwhelmed and was killed by decapitation.