Dropsy, more often called edema, is the increase of interstitial fluid in any organ.

Epidemic dropsy is a clinical state, characterized by edema, resulting from use of edible oils adulterated with Mexican poppy (Argemone mexicana) seed oil.

Dropsy may also refer to:

Entertainment Dropsy (Hergé), a comic series by Hergé Dropsy (video game), a 2015 video game developed by Tendershoot and A Jolly Corpse

People Dominique Dropsy (born 1951), former football goalkeeper

Other uses Fish dropsy, a common set of symptoms among fresh-water aquarium fish