Baydar Nature Reserve (Ukrainian: Байда́рський заказник, romanized: Baidarskyi zakaznyk; Russian: Байдарский заказник, romanized: Baydarsky zakaznik) is a regional nature reserve (zakaznik) located in the city of Sevastopol in Crimea, a region internationally recognised as Ukraine but occupied by Russia since 2014.

Approximately 77% of the reserve is covered by forests, primarily juniper, oaks, ash, beech, hornbeam, and pistachio.

[1] An important part of the Baydar Nature Reserve is its role in water protection.

A total of 64,000,000 m3 (6.4×1010 L) is located in the reserve, providing drinking water to the city of Sevastopol.

[1][2] It was declared a landscape zakaznik of national importance on 31 May 1990 by the Cabinet of Ministers of the Ukrainian Soviet Socialist Republic.