Hydroxyestradiol means the hydroxylation products of estradiol and its analogues, may refer to:

Hydroxyestradiol 2-Hydroxyestradiol 4-Hydroxyestradiol 15α-Hydroxyestradiol Estriol (16α-hydroxyestradiol) Epiestriol (16β-hydroxyestradiol)

Hydroxyepiestradiol 17α-Epiestriol (16α-hydroxyepiestradiol) 16β,17α-Epiestriol (16β-hydroxyepiestradiol) Dihydroxyestradiol Estetrol (15α,16α-dihydroxyestradiol) 2-Hydroxyestriol 4-Hydroxyestriol