Baikal-Lena Nature Reserve (Russian: Байкало-Ленский заповедник) (also Lake Baikal; or Baykal-Lensky, or Baykal-Lena) is a Russian 'zapovednik' (strict nature reserve) located on the northwest coast of Lake Baikal in southern Siberia.

[1] The Baikal-Lena Reserve is managed jointly with Pribaikalsky National Park, which is immediately to the south, thus protecting a continuous 580 km of shoreline on Lake Baikal.

Rivers on the east slope of the Baikal Mountains are short and shallow, and at times their flow is insufficient to reach the lake and the water drains into the ground.

The dominant vegetation is light coniferous taiga with larch (Larix gmelinii forming the canopy in areas with low snow cover.

The reserve also permits group rafting trips on the Lena River upon written application and approval.