芦原（英语：Reed bed），又称芦洲、苇原、芦苇床、芦苇丛，在河漫滩、河口湾、湿地、沼泽等积水之处，因为芦苇等草本植物生长，所自然形成的小型草原景观。随着芦苇生长，这个地区会逐渐高于水平面，成为干地。许多鸟类与野生动物都会聚集在此，成为重要的自然栖地。

以人工方式制造的芦原，可以用来清除污染。

维基共享资源中相关的多媒体资源：芦原

Reed beds are natural habitats found in floodplains, waterlogged depressions and estuaries. Reed beds are part of a succession from young reed colonising open water or wet ground through a gradation of increasingly dry ground. As reed beds age, they build up a considerable litter layer which eventually rises above the water level, and ultimately provides opportunities for scrub or woodland invasion. Artificial reed beds are used as a method of removing pollutants from grey water.