The Black Sea country is trying to replace the new vessels with its three aging Soviet-made patrol vessels and strengthen its compliance with NATO requirements.
Luerssen won the contract in a tender over Italy's Fincantieri.
"With this project, we are making the right step towards modernizing our navy," Defence Minister Krasimir Karakachanov stated.
Both patrol ships will be constructed in Bulgaria and are scheduled to be ready in 2025 and 2026 respectively.
Maritime Business World