Canada
- Niagara Falls, by iOntario
- Niagara-on-the-Lake, by iOntario
- Niagara-halvøen, region Ontario
Amerikas Forenede Stater
- Niagara, en by i Grand Forks County, North Dakota
- Niagara Falls, by i Niagara County, New York
- Niagara, by i Niagara County, New York
- Niagara, by i Marinette County, Wisconsin
Andet
- Niagara, floden afNordamerika
- Niagara Falls, vandfald af den homonyme flod