NTX may refer to:
NTX (group), a South Korean boy group Ntx (trigraph) N-terminal telopeptide, a biomarker used to measure the rate of bone turnover Nereistoxin, a natural product toxin Nitazoxanide, an antimicrobial drug North Texas Noxiustoxin, a scorpion toxin Raden Sadjad Airport (IATA: NTX), Natuna Island Somra language (ISO 639:ntx), spoken in Burma