| Acayucan | |
| Settlement Type: | City and municipal seat |
| Pushpin Map: | Mexico Veracruz#Mexico |
| Pushpin Label Position: | above |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Veracruz |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Acayucan |
| Established Title2: | Town status |
| Established Date2: | 13 June 1848 |
| Established Title3: | City status |
| Established Date3: | 26 September 1910 |
| Population As Of: | INEGI2010 |
| Population Total: | 83,817 |
| Population Blank1 Title: | Municipality |
| Population Blank1: | 79429 |
| Timezone: | Central (US Central) |
| Utc Offset: | -6 |
| Coordinates: | 17.9422°N -94.9103°W |
| Elevation M: | 100 |
| Postal Code Type: | Postal code |
| Postal Code: | 96000 |
| Area Code: | 924 |
| Blank Name: | Demonym |
| Blank Info: | Acayuqueño |
| Blank1 Name: | Climate |
| Blank1 Info: | Aw |
| Website: | www.acayucan.gob.mx |
Acayucan is a city in the Mexican state of Veracruz, located in the state's southeast, in the Olmeca region. It serves as the municipal seat for the municipality of Acayucan.
In the 2005 INEGI Census, Acayucan reported a population of 49,945.[1]