Yes, Eritrea possesses a significant coastline on the Red Sea. Located in the Horn of Africa, the country's eastern border runs along the Red Sea for over 1,000 km (600+ miles), including the Dahlak Archipelago—a group of more than 100 islands.
Eritrea's ports—primarily Massawa (historic, deep-water) and Assab (modern, industrial)—sit near the Bab el-Mandeb Strait, the southern gateway to the Red Sea and Suez Canal. This positions Eritrea at a critical chokepoint for global shipping and regional geopolitics. The coastline also supports fisheries, potential tourism (coral reefs, islands), and naval operations.