| Official Name: | St. Charles Township |
| Settlement Type: | Township |
| Unit Pref: | Imperial |
| Image Map1: | Map of Illinois highlighting Kane County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Kane County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Kane |
| Established Title: | Established |
| Established Date: | November 6, 1849 |
| Area Total Sq Mi: | 35.55 |
| Area Land Sq Mi: | 34.82 |
| Area Water Sq Mi: | 0.74 |
| Area Water Percent: | 2.08 |
| Population As Of: | 2010 |
| Population Density Sq Mi: | 1460.6 |
| Elevation M: | 222 |
| Elevation Ft: | 728 |
| Coordinates: | 41.9428°N -88.32°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 60119, 60120, 60134, 60174, 60175, 60177, 60184 |
| Blank Name: | FIPS code |
| Blank Info: | 17-089-66716 |
| Pop Est As Of: | 2016 |
| Pop Est Footnotes: | [1] |
| Population Est: | 51672 |
St. Charles Township is one of sixteen townships in Kane County, Illinois, USA. As of the 2010 census, its population was 50,854 and it contained 19,043 housing units.[2]
According to the 2010 census, the township has a total area of, of which (or 97.95%) is land and (or 2.08%) is water.[2] It is divided by the Fox River.