Sulphur is the British spelling of the chemical element, Sulfur.
Sulphur is also the name of a place in Louisiana and part of the name of several other places in the United States of America:
- Sulphur, Louisiana
- Sulphur Springs, Florida
- Sulphur Springs, Indiana
- Sulphur Springs, Texas
- Hot Sulphur Springs, Colorado
- White Sulphur Springs, Montana
- White Sulphur Springs, New York
- White Sulphur Springs, West Virginia