Czakó or Cakó is a Hungarian language surname, which is derived from the name for a type of military cap. It may refer to:
The P-64 is a Polish 9x18mm semi-automatic pistol designed to fire the 9×18mm Makarov cartridge. The pistol was developed in the late 1950s at the Institute for Artillery Research (Polish: Zakład Broni Strzeleckiej Centralnego Badawczego Poligonu Artyleryjskiego, which later became the Military Institute of Armament Technology, Polish: Wojskowy Instytut Techniczny Uzbrojenia w Zielonce—WITU) by a team consisting of: W. Czepukajtis, R. Zimny, H. Adamczyk, M. Adamczyk, S. Kaczmarski and J. Pyzel. The P-64 is also known as the CZAK (an acronym of the designers' last names with the exception of J. Pyzel, who joined the team after the name had been established).
The P-64 was drawn from a competition for a new service pistol issued in 1958. At the prototype stage, two versions of the CZAK pistol were created: the Model M (Milicyjny), with a magazine capacity of 6 rounds and chambered to use the .380 ACP (9×17mm Short) cartridge and the Model W (Wojskowy), with a longer barrel than the Model M, a 6-round magazine capacity and chambered for the 9×18mm Makarov round.