| Trenton, Kansas | |
| Settlement Type: | Unincorporated community |
| Image Map1: | Map of Saline Co, Ks, USA.png |
| Map Caption1: | KDOT map of Saline County (legend) |
| Pushpin Map: | Kansas#USA |
| Pushpin Label: | Trenton |
| Pushpin Label Position: | right |
| Coordinates: | 38.8869°N -97.6492°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Saline |
| Subdivision Type3: | Township |
| Established Title: | Founded |
| Established Title1: | Platted |
| Unit Pref: | Imperial |
| Elevation Ft: | 1224 |
| Population Density Sq Mi: | auto |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP code |
| Area Code Type: | Area code |
| Area Code: | 785 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS ID |
| Blank1 Info: | 476631 |
Trenton is an unincorporated community in Saline County, Kansas, United States. It is located northwest of Salina at the intersection of Gerard Road and Pleasant Hill Road, next to an abandoned railroad.
The community is served by Salina USD 305 public school district.