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 20th century. It was the first production handgun to use a slide.

A semi-automatic pistol is a handgun that automatically ejects and loads cartridges in its chamber after every shot fired. Only one round of ammunition is fired each time the trigger is pulled, as the pistol's fire control group disconnects the trigger mechanism from the firing pin/striker until the trigger has been released and reset.