Grattan
- C. Hartley Grattan
- Grattan Bridge
- Grattan H. Wheeler
- Grattan Institute
- Grattan Kerans
- Grattan O'Leary
- Grattan Stadium
- Grattan Township, Holt County, Nebraska
- Grattan Township, Michigan
- Grattan Township, Minnesota
- Grattan massacre
- Grattan plc
- Harry Grattan
- Henry Grattan
- Henry Grattan (junior)
- Jennifer Grattan
- John Grattan (naturalist)
- Michelle Grattan
- Thomas Colley Grattan
- William J. Grattan