| Caotan | |
| Official Name: | 草滩镇 |
| Settlement Type: | Town |
| Subdivision Type: | Country |
| Subdivision Name: | China |
| Subdivision Type1: | Province |
| Subdivision Name1: | Gansu |
| Subdivision Type2: | Prefecture-level city |
| Subdivision Name2: | Baiyin |
| Subdivision Type3: | County |
| Subdivision Name3: | Huining |
| Elevation Min M: | 1600 |
| Elevation Max M: | 2200 |
| Population Total: | 13,180 |
| Population As Of: | 2019 |
Caotan is a town of Huining County, Gansu, China. It has a population of 13,180 as of 2019 and governs over 7 villages.[1] The town is poor and most residents make a living by farming corn, wheat, potato and shallot.[2]