| Morrill Limestone | |
| Type: | Formation Member |
| Age: | Lower Permian |
| Prilithology: | Shale |
| Region: | mid-continental |
| Country: | United States |
| Unitof: | Beattie Limestone |
| Overlies: | Florena Shale of the Beattie Limestone formation |
The Morrill Limestone is a stratigraphic unit in east-central Kansas, northeast-central Oklahoma, and southeastern Nebraska in the Midwestern United States. It preserves fossils dating to the Permian period.