Yohualichan, Archaeological site in Cuetzalan del Progreso Municipality, Mexico

Yohualichan is an archaeological complex in Cuetzalan del Progreso Municipality featuring several pyramid structures built in the talud-tablero architectural style. The buildings display characteristic sloped walls and flat rectangular panels that define this construction method.

Totonac settlers from El Tajín founded Yohualichan around 200 CE, at the start of the Classic period, and it flourished around 600 CE. Its original inhabitants stayed until about 800 CE. Toltec groups settled around 900 CE and remained until 1200 CE, when the Chichimecas took control of the fertile lands and the site entered its decline.

The name Yohualichan comes from Nahuatl yohualli, "night", and ichan, "house", giving "House of Night". The site lies in Cuetzalan del Progreso, a municipality with Nahua and Totonac-speaking communities whose markets and festivals continue in the town below the ruins.

The site is accessible via a paved road about 5 kilometers (3 miles) north of Cuetzalan. Getting there is straightforward, making it easy to visit as part of a day trip to the area.

The name Yohualichan comes from Nahuatl yohualli, "night", and ichan, "house": "the house of the night". The Totonac builders are thought to have come from El Tajín around 200 CE, and the site's peak is placed around 600 CE.