白鼻症候群（英语：White nose syndrome，缩写为WNS），又称白鼻病，在2012年开始，流行于北美洲蝙蝠中的疾病，估计已经造成570万至670万只蝙蝠死亡。这种疾病是来自于真菌感染，患病蝙蝠的口鼻部会出白色菌丝生长，因此得名。随着真菌侵袭部位扩大，最终造成蝙蝠死亡。2006年2月，在美国纽约州的一处洞穴中，科学家首次发现这种疾病。至2014年为止，已经散布到美国14个州。

造成这种疾病的真菌，被称为Pseudogymnoascus destructans，它会寄居在蝙蝠的皮肤上。目前科学家尚未发现任何有效的治疗方法。有些蝙蝠族群，在这五年中，数量已经减少了90%.。

White-nose syndrome (WNS) is an emerging disease in North American bats which as of 2012 was associated with at least 5.7 million bat deaths. The condition is named for a distinctive fungal growth around the muzzles and on the wings of hibernating bats and was first identified from a February 2006 photo taken in a cave in Schoharie County, New York. It has rapidly spread. As of September 2014, the fungus has been found in caves and mines of 25 states throughout the Northeastern US, as far south as Mississippi, as far west as Missouri and as far north as five Canadian provinces.