Ak may refer to:
The AK-47, or AK as it is officially known (Russian: Автома́т Кала́шникова, tr. Avtomát Kaláshnikova, lit.
Abu'l-Fath Jalal-ud-din Muhammad Akbar (15 October 1542– 27 October 1605), popularly known as Akbar I (IPA: [əkbər], was the third Mughal emperor, who reigned from 1556 to 1605. Akbar succeeded his father, Humayun, under a regent, Bairam Khan, who helped the young emperor expand and consolidate Mughal domains in India.
The AKM (Russian: Автома́т Кала́шникова модернизи́рованный, tr. Avtomát Kaláshnikova modernizírovanny, lit.
The Akita (秋田犬, Akita-inu, Akita-ken) is a large breed of dog originating from the mountainous northern regions of Japan.
The Akkadian Empire () was the first ancient Semitic-speaking empire of Mesopotamia, centered in the city of Akkad and its surrounding region, also called Akkad in ancient Mesopotamia in the Bible.