FN M1900

M1900/Browning No.1
Browning 1900 .32 ACP
Type	Semi-automatic pistol
Place of origin	Belgium
Production history
Designer	John Browning
Designed	1896
No. built	c. 700,000
Variants	Modele 1899, Mle. 1900
Specifications
Weight	625 g (1.378 lb)
Length	17.2 cm (6.8 in)
Barrel length	10.2 cm (4.0 in)
Cartridge	.32 ACP
Action	Blowback operated
Feed system	7+1
Sights	Fixed

The FN Browning M1900 is a single action, semi-automatic pistol designed c. 1896 by John Browning for Fabrique Nationale de Herstal (FN) and produced in Belgium at the turn of the century. It was the first production handgun to use a slide.

The design was presented to arms manufacturer FN Herstal in 1898, with production commencing the following year (then under the designation Modele 1899). In 1900, an improved design featuring primarily a shorter barrel and wider grips was introduced as the M1900. These designations were applied retroactively after FN began manufacture of other Browning pistol designs; initially the M1900 was marketed as simply the "Pistolet Browning" (Browning Pistol). Production ceased only 11 years later, with a total of about 700,000 units having been produced.

United States President Theodore Roosevelt owned a mother of pearl-gripped M1900, which he regularly kept on his person and in his bedside drawer.Eugen Schauman used an M1900 (serial number unknown) in his 1904 assassination of the Russian Governor-General of Finland at the time, Nikolai Ivanovich Bobrikov.

Contrary to many reports from various sources, an M1900 was not used to assassinate Archduke Franz Ferdinand of Austria in Sarajevo on June 28, 1914; the handgun used by Gavrilo Princip in that notorious incident was instead a FN 1910. As initial reports said only that Princip had used a "Browning pistol", many newspaper illustrations erroneously depicted him firing the Model 1900.An Jung-geun used an M1900 in his 1909 assassination of the Japanese Resident-General of Korea, Itō Hirobumi. Communist revolutionaries also used Browning pistols to murder the Russian imperial family in July 1918. A Chinese copy of the gun saw usage during the Second Sino-Japanese War and the Chinese Civil War.