Hydroxyamphetamine may refer to:
- β-Hydroxyamphetamine (phenylisopropanolamine; two chiral centers and four possible stereoisomers)
- Phenylpropanolamine (racemic phenylpropanolamine; norephedrine; (1R,2S/1S,2R)-β-hydroxyamphetamine; (±)-phenylpropanolamine)
- Norpseudoephedrine (racemic norpseudoephedrine; (1S,2S/1R,2R)-β-hydroxyamphetamine; (±)-norpseudoephedrine)
- Cathine ((1S,2S)-β-hydroxyamphetamine; D-Norpseudoephedrine; (+)-norpseudoephedrine)
- L-Norpseudoephedrine ((1R,2R)-β-hydroxyamphetamine; (−)-norpseudoephedrine)
- Gepefrine (3-hydroxyamphetamine)
- 4-Hydroxyamphetamine
- N-Hydroxyamphetamine