Grass Valley may refer to:

Places

United States

• Grass Valley, California, a city in Nevada County
  • Roman Catholic Diocese of Grass Valley, a former diocese based in the California city
• Little Grass Valley, California, a former town in Plumas County
• Grass Valley, Oakland, California, a neighborhood
• Grass Valley, Oregon, a city in Sherman County

Australia

• Grass Valley, Western Australia, a small town in the Avon Valley

Other

• Grass Valley (company), a television and film technology company, a subsidiary of Thomson SA
• Grass Valley speckled dace, an extinct species of fish
• Grass valley for the general topographical term

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