Dihydroxystilbene may refer to:
3,4′-Dihydroxystilbene, a stilbenoid found in the roots of Hydrangea macrophylla Pinosylvin (3,5-dihydroxystilbene), a pre-infectious stilbenoid toxin Stilbestrol (4,4'-dihydroxystilbene), a stilbenoid and parent of diethylstilbestrol (DES)