The Zastava M57 is a Yugoslavian and Serbian semi-automatic pistol produced by Zastava Arms. It was the standard service pistol of the Yugoslav People's Army from 1961 until the early 1990s. The M57 was an unlicensed derivative of the Soviet TT pistol, but incorporated a number of detail modifications, namely a longer grip and a slightly larger magazine. Zastava reverse engineered the Soviet TT in 1954, and began serial production of the weapon type as the M57 in 1963.

Zastava Arms is a Serbian manufacturer of firearms and artillery, based in Kragujevac, Serbia. In 1853, it was founded, and cast its first cannon. It is the leading producer of firearms in Serbia and is a large contributor to the local defense industry. Zastava Arms produces and exports a wide variety of products to over forty countries, including the Zastava M70, a Kalashnikov rifle.