| Official Name: | Lake Township, Cerro Gordo County |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Cerro Gordo |
| Area Total Km2: | 69.31 |
| Area Land Km2: | 69.31 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 26.76 |
| Area Land Sq Mi: | 26.76 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2000 |
| Population Total: | 345 |
| Population Density Km2: | 5 |
| Population Density Sq Mi: | 12.9 |
| Elevation Footnotes: | [1] |
| Elevation M: | 360 |
| Elevation Ft: | 1181 |
| Coordinates: | 43.1272°N -93.3175°W |
| Blank Name: | FIPS code |
| Blank Info: | 19-92346[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0468178 |
Lake Township is one of sixteen townships in Cerro Gordo County, Iowa, United States. As of the 2000 census, its population was 345.
Lake Township covers an area of 26.76sqmi and contains no incorporated settlements. According to the USGS, it contains one cemetery, Memorial Park. Lake Township includes the territory between Mason City and Clear Lake, the two largest cities in the county, and the only two that are not part of any township. Mason City Municipal Airport is located in Lake Township.