Chatan () is an ancient Okinawan surname and this surname is read Kitatani in Japanese nowadays. Notable people with the surname include: Chatan Chōai (1650–1719), prince of Ryukyu Kingdom, Japan Chatan Chōchō (1607–1667), bureaucrat of Ryukyu Kingdom, Japan Chatan Chōki (1703–1739), prince of Ryukyu Kingdom, Japan Chatan Yara (1668–1756), Ryukyuan martial artist