Illescas is a municipality located in the province of Toledo, Castile-La Mancha, Spain. According to the 2006 census (INE), the municipality has a population of 15,830 inhabitants. In 2012, Illescas had more than 24,000 inhabitants.

Monuments

• Arco de Ugena is the remaining fragment of the old Puerta de Ugena, a door made of wood in the Mudéjar style. The wall had five doors and the Arco de Ugena is the last one standing. It is thought to have been built in the 11th century, when Alfonso VI wanted to wall the village.
• Convento de la Concepción de la Madre de Dios was built in 1514 by Cardinal Cisneros. The first mother superior, Inés de la Concepción, was Cardinal Cisneros's cousin.
• Hospital Nuestra Señora de la Caridad was built between the 16th and 17th centuries.
• Santuario de Nuestra Señora de la Caridad was built in 1500. It hosts five paintings by El Greco: Saint Ildefonsus and four of the five painted for its high altarpiece (Charity, Coronation of the Virgin, Nativity and Annunciation).
• Iglesia parroquial and Torre Mudéjar; in 1920 this was declared a national monument.
• Calle Real is a densely populated main street.
• Plaza de las Cadenas is located in front of the Iglesia de la Caridad.
• Olmo del Milagro is a 500-year-old elm.