Androstanediol may refer to:

• 3α-Androstanediol (5α-androstane-3α,17β-diol) – an endogenous neurosteroid, weak androgen and estrogen, and intermediate to androsterone
• 3β-Androstanediol (5α-androstane-3β,17β-diol) – an endogenous estrogen and intermediate to epiandrosterone
• 3α-Etiocholanediol (5β-androstane-3α,17β-diol; etiocholane-3α,17β-diol) – an endogenous intermediate to etiocholanolone
• 3β-Etiocholanediol (5β-androstane-3β,17β-diol; etiocholane-3β,17β-diol) – an endogenous intermediate to epietiocholanolone