Otter River may refer to:
North America Otter River (Northwest Branch Saint John River tributary), in Quebec, Canada, and Maine, US Otter River (Ontario) Otter River (Massachusetts) Otter River, a village in Templeton, Massachusetts Otter River (Michigan) Otter River (Minnesota) Otter River (Virginia) Sweet Grass Creek, or Otter River, in Montana
United Kingdom River Otter, Devon, England
See also River otter (disambiguation) Otto River, in New Zealand's South Island