HTU may refer to:
Universities Hokkaido Tokai University in Japan Holy Trinity University, in Puerto Princesa City, Palawan, Philippines Huston–Tillotson University, in Austin, Texas, United States
Other uses Hashtag United, a YouTube-based association football club Hitu language, spoken in Indonesia Hongtu Airlines, a Chinese airline Hopetoun Airport, in Victoria, Australia Hydrothermal upgrading