Tengen

Tengen may refer to:

• Tengen (Go), the center point on a Go board, and the name of a Go competition in Japan
• Tengen (city), a city in Baden-Württemberg, Germany
• Tengen (company), a defunct video game publisher and developer
• Tengen (era), the Japanese era name for the years 978–983
• Tengen Toppa Gurren Lagann, a 2007 anime series by Gainax
• Tian yuan shu, in Japanese tengenjutsu (天元術), a method of algebra in Chinese and Japanese mathematics
• Tengenjutsu (fortune telling) (天源術), a Japanese fortune telling method