Tokugawa Munemasa (徳川 宗将, April 6, 1720 – April 14, 1765) was a Japanese daimyō of the mid-Edo period, who ruled the Wakayama Domain. He was the son of Tokugawa Munenao, grandson of Matsudaira Yorizumi and great-grandson of Kishū Domain founder, Tokugawa Yorinobu. His childhood name was Naomatsu (直松).

• Father: Tokugawa Munenao (1682–1757)
• Mother: Hattori-dono later Eiryu'in
• Wives:
  • Tokuko, daughter of Imadegawa Kinakira
  • Takako, daughter of Ichijō Kaneka
• Concubines:
  • Yoshida-dono
  • Maeda-dono
  • Murakami-dono
  • Ueda-dono
• Children:
  • Naomatsu by Tokuko
  • Senmanhime married Maeda Shigemichi by Tokuko
  • Kotohime betrothed to Ikeda Shigenobu by Tokuko
  • Mon'noshin by Tokuko
  • Matsudaira Yoriyuki by Tokuko
  • Ishihime by Tokuko
  • Matsudaira Tadakatsu of Kuwana Domain by Tokuko
  • Tokugawa Shigenori (1746–1829) by Yoshida
  • Ichihime married Matsudaira Shigetomi by Yoshida
  • Naito Satofumi (1751–1794) of Koromo Domain by Yoshida
  • Matsudaira Yorikata (1755–1806) of Saijo Domain by Maeda
  • Yorihime married Tokugawa Haruyuki by Murakami
  • Miura Tamenobu (1759–1789) by Murakami
  • Ando Michinori (1760–1825) by Murakami
  • Abe Masayoshi by Murakami
  • Matsudaira Tadatomo (1759–1802) of Kuwana Domain by Ueda

• (in Japanese) Wakayama Domain on "300 han HTML" Archived 2007-12-02 at the Wayback Machine