Cobmoosa, or Weebmossa meaning "Great Walker", was an Odawa leader who lived in a Native American village at the mouth of the Flat River at the present-day city of Lowell, Michigan until 1858.

The Odawa are an Indigenous American people who primarily inhabit land in the Eastern Woodlands region, now in jurisdictions of the northeastern United States and southeastern Canada. Their territory long preceded the creation of the current border between the two countries in the 18th and 19th centuries.