2,6-Dihydroxynaphthalene is an organic compound with the formula . It is one of several isomers of dihydroxynaphthalene. A white solid, degraded samples often appear grey to light brown solid.
2,6-Dihydroxynaphthalene is prepared by base hydrolysis of 2-hydroxynaphthalene-6-sulfonic acid. It can be oxidized to 2,6-naphthoquinone using lead dioxide.