Ciudad Nezahualcóyotl, or more commonly Ciudad Neza, is a city and municipality of Mexico State adjacent to the northeast corner of Mexico's Federal District: it is thus part of the Mexico City Metropolitan Area. 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."
The city and municipality is named after the Aztec King Nezahualcóyotl. The entity has an Aztec glyph as well as a coat of arms. 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.