The Tomono clan (伴野氏, Tomono-shi) were a Japanese kin group in Shinano province during the Sengoku Period.
[1] The Tomono claim descent from the Ogasawara clan, particularly Ogasawara Nagakiyo.
[2] The clan were weakened after involvement in the Adachi Yasumori affair in 1285.
[2] In the Sengoku period they became vassals of Takeda Shingen, but later became retainers of the Tokugawa after the Takeda fell in 1582.
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