| Tonovay, Kansas | |
| Settlement Type: | Unincorporated community |
| Image Map1: | Map of Greenwood Co, Ks, USA.png |
| Map Caption1: | KDOT map of Greenwood County (legend) |
| Pushpin Map: | Kansas#USA |
| Pushpin Label: | Tonovay |
| Pushpin Label Position: | left |
| Coordinates: | 37.8522°N -96.1781°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Kansas |
| Subdivision Type2: | County |
| Subdivision Name2: | Greenwood |
| Subdivision Type3: | Township |
| Established Title: | Founded |
| Established Title1: | Platted |
| Unit Pref: | Imperial |
| Elevation Ft: | 1050 |
| Population Density Sq Mi: | auto |
| Population Density Km2: | 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: | 620 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS ID |
| Blank1 Info: | 474649 |
Tonovay (also Ton of Hay) is an unincorporated community in Greenwood County, Kansas, United States. It is located approximately 5 miles east of the city of Eureka along K-99 highway.
The community is served by Eureka USD 389 public school district.