HNK may refer to:
*
Croatian National Corpus Croatian National Corpus ( hr, Hrvatski nacionalni korpus, ''HNK'') is the biggest and the most important corpus of Croatian. Its compilation started in 1998 at the Institute of Linguistics of the Faculty of Humanities and Social Sciences, Universi ...
(Croatian: ')
*
Croatian National Theatre (disambiguation) Croatian National Theatre ( hr, Hrvatsko narodno kazalište) is the official name of several state-funded theatre houses in Croatia. Each one is commonly referred to by the Croatian-language initialism HNK. The four theatre houses in biggest cities ...
(Croatian: ')
*
Honokiol
Honokiol is a lignan isolated from the bark, seed cones, and leaves of trees belonging to the genus ''Magnolia''. It has been identified as one of the chemical compounds in some traditional eastern herbal medicines along with magnolol, 4-O-methyl ...
, a lignan
*
Hydroxynorketamine
Hydroxynorketamine (HNK), or 6-hydroxynorketamine, is a minor metabolite of the anesthetic, dissociative, and antidepressant drug ketamine. It is formed by hydroxylation of the intermediate norketamine, another metabolite of ketamine. As of l ...
, HNK, a metabolite of ketamine
{{disambiguation