| Official Name: | El Tumbador |
| Settlement Type: | Municipality |
| Pushpin Map: | Guatemala San Marcos#Guatemala |
| Pushpin Map Caption: | Location in San Marcos Department, Guatemala |
| Coordinates: | 14.8667°N -91.9333°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Guatemala |
| Subdivision Type1: | Department |
| Subdivision Name1: | San Marcos |
| Leader Party: | LIDER |
| Leader Title: | Mayor |
| Leader Name: | Augusto Echeverría[1] |
| Area Total Km2: | 166 |
| Population As Of: | 2018 census |
| Population Footnotes: | [2] |
| Population Total: | 44395 |
| Population Density Km2: | auto |
| Population Urban: | 8856 |
| Unit Pref: | Metric |
| Blank Name: | Climate |
| Blank Info: | Am |
El Tumbador is a town and municipality in the San Marcos department of Guatemala. The population is mostly of Mam people, who speak their own language. It was founded in 1878.
The main source of income is agriculture—farming and animal husbandry. People produce mostly coffee, but also sugarcane, beans, cassava, fruits and spices—cardamom and macadamia. Cattle, horses, sheep and goats are bred in the area as well.
El Tumbador gave its name to the Belgian Non-governmental organization Tumbador vzw that used to support a project in the municipality.
El Tumbador has tropical climate (Köppen: Am).
It is surrounded by San Marcos Department municipalities: