| Rio Frio | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Texas#USA |
| Pushpin Map Caption: | Location within the state of Texas |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Subdivision Name2: | Real |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1483 |
| Coordinates: | 29.6361°N -99.7367°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 78879 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1345243 |
Rio Frio is an unincorporated community in southeastern Real County, Texas, United States. It lies just off U.S. Route 83, south of the city of Leakey, the county seat of Real County.[1] Its elevation is 1,483 feet (452 m).[2] It has a post office, with the ZIP code 78879.[3] The town is named after the Frio River, on which it is situated.[4]