| Official Name: | Tumbao |
| Settlement Type: | Barrio |
| Pushpin Map: | Caribbean |
| Pushpin Map Caption: | Location of Puerto Rico |
| Coordinates: | 18.0208°N -65.9212°W |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Commonwealth |
| Subdivision Name: |  Puerto Rico |
| Subdivision Type1: | Municipality |
| Subdivision Name1: | Maunabo |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 1.46 |
| Area Land Sq Mi: | 1.46 |
| Area Water Sq Mi: | 0 |
| Population As Of: | 2010 |
| Population Note: | Source: 2010 Census |
| Population Total: | 593 |
| Population Density Sq Mi: | 406.2 |
| Timezone: | AST |
| Utc Offset: | -4 |
| Elevation Ft: | 154 |
| Postal Code Type: | ZIP Code |
Tumbao is a barrio in the municipality of Maunabo, Puerto Rico. Its population in 2010 was 593. A new barrio, appearing in the 2010 census, Tumbao barrio was formed from part of Palo Seco barrio. Its population in 2010 was 593.[2] [3] [4]