Aḥmed Shāh bin Janysh Sultan (Kazakh: احمد شاه بن جانیش سلطان, Ахмед шах бин Жаныш сұлтан, romanized: Ahmed Şah bin Janyş Sūltan), also known as Ahmed Khan, was a Khan of the Kazakh Khanate who ruled the western part of modern-day Kazakhstan as well as the upper reaches of the Syr Darya river from 1533 to 1536.
Ahmed also lived in northern Kazakhstan near modern-day Astana and Pavlodar for much of his life, as he fought a war of succession for the Kazakh throne.
In 1535, Ahmed Khan was deposed and overthrown by Aziz Sultan, a Kazakh noble.
Six months later in 1536, Ahmed again ruled in the upper reaches of the Syr Darya, and attacked the Nogai Horde which defeated him and captured him along with his fifteen sons.
After Ahmed's death, all the territories that were under his control was captured by Haqnazar, who managed to end the feud and restore the unity of the Kazakh Khanate.