喷烟者（德语：Nebelwerfer，意指烟雾迫击炮）是第二次世界大战期间德军研发的一系列投掷式武器。虽然喷烟者中的六管火箭炮较为有名，其系列却甚至包括迫击炮型或安装在汽车上。这些武器最初的开发目标是分配给德意志国防军的化学部队（德语：Nebeltruppen）。它们被赋予的名字：烟雾投掷器其实是一种假情报，专门提供给盟军的间谍。虽然一开始就为喷烟者研发了一种高爆弹，但其于一开始主要用于发射毒气弹或烟雾弹。它的薄壁内其可以比迫击炮或火炮在相同重量的情况下发射更多气体、液体或弹药。除了巴尔干战役，喷烟者参与了德军所有的战役。其中一款喷烟者更甚至被改为防空用。其烟雾迫击炮的意思也用来误导来防止违反凡尔赛条约的国际联盟观测员，阻止他们发现此武器能发射烟雾弹之外的炸弹甚至是毒气弹。

The Nebelwerfer ("Smoke Mortar") was a World War II German series of weapons. They were initially developed by and assigned to the Wehrmacht's so-called "smoke troops" (Nebeltruppen). This weapon was given its name as a disinformation strategy designed to fool observers from the League of Nations, who were observing any possible infraction of the Treaty of Versailles, into thinking that it was merely a device for creating a smoke screen. They were primarily intended to deliver poison gas and smoke shells, although a high-explosive shell was developed for the Nebelwerfer from the beginning. Initially, two different mortars were fielded before they were replaced by a variety of rocket launchers ranging in size from 15 to 32 centimetres (5.9 to 12.6 in). The thin walls of the rockets had the great advantage of allowing much larger quantities of gases, fluids or high-explosives to be delivered than artillery or even mortar shells of the same weight. With the exception of the Balkans Campaign, Nebelwerfer were used in every campaign of the German Army during World War II. A version of the 21 cm calibre system was even adapted for air-to-air use against Allied bombers.