| Arjona | |
| Nickname: | La tierra del bollo de mazorca |
| Settlement Type: | Municipality and town |
| Pushpin Map: | Colombia |
| Pushpin Mapsize: | 300 |
| Pushpin Map Caption: | Location in Colombia |
| Subdivision Type: | Country |
| Subdivision Name: |  Colombia |
| Subdivision Type1: | Department |
| Subdivision Name1: | Bolívar Department |
| Leader Title: | Mayor |
| Leader Name: | Gustavo Perez |
| Established Title: | Founded |
| Established Date: | 1775 |
| Area Total Km2: | 589.6 |
| Area Urban Km2: | 7.05 |
| Population As Of: | 2018 census |
| Population Total: | 69503 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Population Urban: | 55134 |
| Population Density Urban Km2: | auto |
| Population Demonym: | Arjonero |
| Coordinates: | 10.2586°N -75.3461°W |
| Elevation M: | 63 |
| Area Code: | 57 + 5 |
| Website: | Official website |
Arjona is a town and municipality located in the Bolívar Department, northern Colombia, about 30 km southeast of Cartagena de Indias.
Its primary activity is farming and producing the main recognized product, called Bollo by native people from there.