| Southern Denkalya | |
| Mapsize: | 200px |
| Mapsize1: | 150px |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Southern Red Sea |
| Unit Pref: | Metric |
| Timezone: | GMT +3 |
| Utc Offset: | +3 |
Southern Denkalya Subregion is a subregion in the Southern Red Sea region (Zoba Debubawi Keyih Bahri) of Eritrea.