Shamsuddin Ahmad Shah (reigned: 1433–1436) was a ruler of Bengal. He was the son and successor of Sultan Jalaluddin Muhammad Shah. After his father's death, he ascended the throne at the age of 14.
Ahmad Shah ruled for only 3 years. His reign was marked with chaos and anarchy. According to Firishta, he followed the liberal policy of his father and was known for justice and charity. During his reign there was an invasion by Ibrahim Shah Sharqi. Later Ahmad Shah was killed by two powerful nobles, Sadi Khan and Nasir Khan in 1436AD. After his assassination, Sadi Khan and Nasir Khan fell out with each other and were overthrown one after another. A descendant of the Ilyas Shahi dynasty, ascended the throne under the title Nasiruddin Mahmud Shah in 1437.