水蛛（学名：Argyroneta aquatica），又名潜水钟蜘蛛，为水蛛科水蛛属的动物。分布于欧洲以及中国大陆的内蒙古、吉林等地，常栖息于淡水中。该物种的模式产地在欧洲。

维基物种中的分类信息：

水蛛

The diving bell spider or water spider (Argyroneta aquatica) is one of the few species of spider known to live almost entirely under water. It is the only member of the genus Argyroneta. When out of the water, the spider ranges in colour from mid to dark brown, although the hairs on the abdomen give it a dark grey, velvet-like appearance.