| Official Name: | Kantunilkín |
| Pushpin Map: | Mexico |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within Mexico |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Quintana Roo |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Lázaro Cárdenas |
| Leader Title: | Municipal President |
| Leader Name: | Clementino Angulo Cupul |
| Established Title: | Established |
| Established Date: | 1850 |
| Population As Of: | 2010 |
| Population Total: | 7150 |
| Population Density Km2: | auto |
| Timezone: | Eastern Standard Time |
| Utc Offset: | -5 |
| Coordinates: | 21.1°N -116°W |
Kantunilkín is the municipal seat and largest city in Lázaro Cárdenas in the Mexican state of Quintana Roo. According to the 2010 census, the city's population was 7,150 persons.[1]
Kantunilkín was established in 1850 by Mayan Cruzobs during the Caste War of Yucatán, and originally called Nueva Santa Cruz–Kantunil. In 1859, the inhabitants accepted the general amnesty and the place was granted recognition by the Mexican government.