| Hunstanton Formation | |
| Type: | Formation |
| Age: | Albian to Cenomanian (Cretaceous) |
| Period: | Cenomanian |
| Otherlithology: | marl |
| Namedfor: | Hunstanton |
| Country: | England |
| Unitof: | Cromer Knoll Group |
| Underlies: | Chalk Group |
| Overlies: | Carstone Formation, Speeton Clay Formation |
| Thickness: | 1–30 m |
| Extent: | north Norfolk, Lincolnshire, Yorkshire |
The Hunstanton Formation is a lithostratigraphic name applied to an early Cretaceous limestone succession in eastern England which was formerly known as Red Chalk. The type section is at Hunstanton Cliff in northwest Norfolk.[1]