HTH

HTH may refer to:

Transportation

• Handforth railway station, England, station code
• Hawthorne Industrial Airport, Nevada, US, IATA and FAA LID code
• Helitt Líneas Aéreas, a Spanish charter airline, ICAO code
• Heworth Interchange, Tyne and Wear Metro, England, station code

Science and technology

• Helix-turn-helix, a protein structural motif
• Homothorax, an arthropod gene

Other uses

• Hand-to-hand combat
• High Tech High (disambiguation)
• House to House Heart to Heart, an American Christian magazine