Mežakla (pronounced [mɛˈʒaːkla]) is a long undulating plateau about 15 km (9 mi) long in the foothills of the Julian Alps above the town of Jesenice in northwestern Slovenia.

It is mostly covered with spruce and beech trees.

Mežakla is part of Triglav National Park but tourism is underdeveloped.

The name Mežakla was first attested in written sources as Moshägkhlä in 1579 (and as Musakhla in 1609 and Meſaqua in 1744).

The name is derived from the dialect word mežek 'juvenile bear'.