ALAC may refer to: Alcohol Advisory Council of New Zealand, autonomous Crown entity for promoting alcohol moderation Aluminium acetate (AlAc), a number of different salts of aluminum with acetic acid Apple Lossless Audio Codec, an audio coding format Artificial Limb & Appliance Centres, facilities managed by the NHS Wales organisation Artificial Limb & Appliance Service At-Large Advisory Committee, an advisory committee to ICANN