Tera or TERA may refer to:





  • tera-, from Greek word "terastios"="huge, enormous", a prefix in the SI system of units denoting 1012, or 1 000 000 000 000
  • Tera language, a Chadic language spoken in north-eastern Nigeria
  • Topfree Equal Rights Association, a women's advocacy group
  • TERA Rifle, Japanese special rifles developed for paratroopers
  • tERA, a baseball statistic
  • Tera, a Japanese word for "temple"
  • Trilogy Emergency Relief Application (TERA), application used for humanitarian purposes to send targeted SMS, providing health and disaster preparedness information to geographical locations.