Ciudad Nezahualcóyotl, or more commonly Ciudad Neza, is a city and municipality of State of Mexico. It was named after Nezahualcoyotl, the Acolhua poet and king of nearby Texcoco, and was built on the drained bed of Lake Texcoco. The name Nezahualcóyotl comes from Nahuatl, meaning "fasting coyote."

Today Ciudad Neza is a sprawling city of over one million entirely with modern buildings. The glyph depicts the head of a coyote, tongue outside the mouth with a collar or necklace as a symbol of royalty. It was one of the ways of depicting the Aztec king. The current coat of arms, which includes the glyph, was authorized by the municipality in the 1990s. The municipality comprises its own intrastate region, Region IX (Mexico State).