| Official Name: | Zažablje |
| Settlement Type: | Municipality |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | left |
| Coordinates: | 42.9925°N 17.6158°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Dubrovnik-Neretva County |
| Subdivision Type2: | Municipality |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 60.6 |
| Population As Of: | 2021 |
| Population Total: | 553 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Zažablje is a municipality of Dubrovnik-Neretva County in southern Dalmatia, Croatia. It is located between Opuzen, Metković and Neum.
According to the 2021 census, its population was 553.
In the 2011 census, Zažablje had a total population of 757, with Croats making up an absolute majority with 99.74% of the population.
The villages in the municipality and their respective populations are: