Bera Bach is a summit, height 807 metres, in the Carneddau mountains in north Wales.

It is part of a ridge leading west from Garnedd Uchaf.

The summit is a rocky tor, characteristic of the northern Carneddau.

Despite Bach in Welsh meaning small, it is higher than Bera Mawr (mawr in Welsh meaning 'big').

Bera Bach can be climbed either from Aber Falls, or alternatively from Bethesda via Gyrn Wigau and Drosgl.