| Mihalj | |
| Settlement Type: | Village |
| Pushpin Map: | Croatia |
| Pushpin Label Position: | left |
| Coordinates: | 42.9903°N 17.4972°W |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Dubrovnik-Neretva County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Slivno |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.0 |
| Population As Of: | 2021 |
| Population Total: | 121 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 20357 Blace |
| Area Code Type: | Area code |
| Area Code: | +385 020 |
| Registration Plate: | DU |
Mihalj is a village in the Slivno municipality of the Dubrovnik-Neretva County, Croatia.
It was established as Mihalj-Kremena in 1948. In 2001, maritime Kremena and Lučina were established out of territory (former hamlets) of Mihalj.
According to the 2021 census, its population was 121.
According to the 1991 census, the village had 220 inhabitants, divided by ethnic identification as: Serbs (48,18%), Croats (41,81%), Yugoslavs (7,72%). In 2001, it had 212 inhabitants in 59 households. According to the 2011 census, the village had 156 inhabitants.