There are many cities named Newcastle in the world.
- Newcastle, New South Wales, Australia
- Newcastle, New Brunswick, Canada
- Newcastle upon Tyne, Tyneside, England
- Newcastle-under-Lyme, Staffordshire, England
- Newcastle, Northern Ireland
- Newcastle, Maine, United States of America
- Newcastle, Texas, United States of America
- Newcastle, Washington, United States of America
- Nyslott or Savonlinna in Finland, literally means Newcastle