Androstenedione may refer to:
4-Androstenedione (androst-4-ene-3,17-dione) – an endogenous weak androgen and estrogen and intermediate to/prohormone of testosterone
5-Androstenedione (androst-5-ene-3,17-dione) – a prohormone of testosterone and hence an androgenic-anabolic steroid
1-Androstenedione (5α-androst-1-ene-3,17-dione) – a prohormone of 1-testosterone (Δ1-DHT) and hence an androgenic-anabolic steroid
