Waterhen may refer to:
Birds Common moorhen or common waterhen, a bird species in the rail family Amaurornis rails, a genus of birds in the rail family Various other birds of the family Rallidae (rails) may be informally called waterhens
Places Waterhen 45, Indian reserve in Manitoba, Canada
Other HMAS Waterhen, one ship and one shore establishment in the Royal Australian Navy
See also Waterhen River (disambiguation) Waterhen Lake (disambiguation)