Misawa clan (which is read Misawa-shi or Misawa-uji) was a clan acting as estate steward in Iijima District, Shinano Province, which were the descendants of Shinano-Genji (Minamoto clan).
三沢氏（みさわし、みさわうじ）は、信濃源氏の後裔で、信濃国飯島郷地頭の一族である。