THB

THB may refer to:

• Tanah Abang station
• Tetrahydrobiopterin, a chemical
• Tetrahydrocorticosterone, a hormone
• Thai baht, the currency of Thailand (ISO 4217 code: THB)
• THB (comics), and the character Tri-Hydro Bi-Oxygenate
• Three Horses Beer of Madagascar
• Toronto, Hamilton and Buffalo Railway reporting mark
• IATA code of Thaba Tseka Airport, an airport serving Thaba-Tseka in Lesotho
• ThB, Bachelor of Theology degree