| Castillo de Teayo | |
| Settlement Type: | Municipal seat |
| Pushpin Map: | Mexico#Mexico Veracruz |
| Pushpin Label Position: | top |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Veracruz |
| Subdivision Type2: | Municipality |
| Established Title: | Settled |
| Established Date: | pre-Conquest |
| Established Title2: | Modern settlement |
| Established Date2: | 1870 |
| Population As Of: | 2005 |
| Population Total: | 4,159 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 20.75°N -97.6333°W |
| Elevation M: | 80 |
| Postal Code Type: | Postal code |
| Blank Name: | Climate |
| Blank Info: | Aw |
Castillo de Teayo is a small town in the Mexican state of Veracruz. Located in the state's Huasteca Baja region, it serves as the municipal seat for the surrounding municipality of the same name.
In the 2005 INEGI Census, Castillo de Teayo reported a total population of 4,159.[1]
"Teayo" comes from the Nahuatl te-ayo-k, which means "tortoise atop stone". This is a reference to the main pyramid of the nearby archaeological site known as the Castle of Teayo, a syncretic blend of the Toltec, Mexica, and Huastec cultures.