Achroia is a genus of small moths of the snout moth family (Pyralidae). It belongs to the tribe Galleriini of subfamily Galleriinae.

It has only one unequivocally recognized species:

• Achroia grisella (Fabricius, 1794) – lesser wax moth

Others are mentioned here with doubtful validity:

• Achroia aluearia Fabricius 1798
• Achroia alvea Haworth 1811
• Achroia anticella Walker 1863
• Achroia cinereola Hübner 1802
• Achroia ifranella Lucas 1955
• Achroia innotata (Walker, 1864)
• Achroia obscurevittella Ragonot 1901

Invalid junior synonyms of this genus are:

• Achroea Agassiz, 1847 (unjustified emendation)
• Acroia (lapsus)
• Meliphora Guenée, 1845
• Vobrix Walker, 1864

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