Rockdale is the name of several places:
United States
- Rockdale County, Georgia
- Rockdale, Illinois
- Rockdale, Indiana
- Rockdale, Kentucky
- Rockdale (Fallston, Maryland), a home on the National Register of Historic Places
- Rockdale, New York
- Rockdale Township, Pennsylvania
- Rockdale, Texas
- Rockdale, Wisconsin
Australia
- Rockdale, New South Wales
- City of Rockdale, the local government area in New South Wales
Northern Ireland
- Rockdale (townland), in the parish of Desertcreat, County Tyrone, Northern Ireland