NKH (disambiguation)

NKH may refer to:
 * Non-ketotic hyperglycinemia, a rare autosomal recessive disorder of glycine metabolism
 * nkh, the ISO 639 code for Kuzhami language
 * Nemzeti Közlekedési Hatóság, the Hungarian government agency
 * Nanjing South railway station, the telegram code NKH
 * Nkh (trigraph)