El Árbol del Tule is a tree located in the church grounds in the town center of Santa María del Tule in the Mexican state of Oaxaca, approximately 9 km (6 mi) east of the city of Oaxaca on the road to Mitla. It is a Montezuma cypress, or ahuehuete. It has the stoutest tree trunk in the world. In 2001, it was placed on a UNESCO tentative list of World Heritage Sites, but was removed from the list in 2013.

Santa María del Tule is a town and a municipality in the Mexican state of Oaxaca. It is part of the Centro District in the Valles Centrales region. It is located 11 kilometers (6.8 mi) SE of the city of Oaxaca on Highway 190. The town and municipality are named for the patron saint of the place, the Virgin Mary and “Tule” comes from the Náhuatl word “tulle” or “tullin” which means bulrush.