Zhaagobe (c.1794), also known as Jack-O-Pa or Shagobai, was a St. Croix Ojibwe chief of the Snake River band. He signed several Chippewa treaties with the United States, including the 1825 Treaty of Prairie du Chien, the 1826 Treaty of Fond du Lac, the 1837 Treaty of St. Peters, and the 1842 Treaty of La Pointe. In 1836, geographer Joseph Nicollet had an Ojibwe guide he called Chagobay (or "Little Six"), but historians are uncertain as to whether they were the same person.