Tae, also spelled Tai or Thae, is a rare Korean family name. It is written with a hanja character meaning "great".
As a rare Korean family name, Tae is written with only one hanja, meaning "great" (). They are a noble clan directly descended from the royal family of the Balhae dynasty. The clan ancestor is Dae Jung-sang, the father of the founder of Balhae, Dae Jo-young. The 2000 South Korean Census found 8,165 people with the family name Tae. In a study by the National Institute of the Korean Language based on 2007 application data for South Korean passports, it was found that 28.5% of people with that surname spelled it in Latin letters as Tai in their passports, vs. 57.1% as Tae. People with this surname trace their origins to several bon-gwan, including Namwon and in what is now South Korea and Hyopgye in what is now North Korea.
People with this family name include: