Microbrachis is an extinct genus of microsaurian tetrapod from the Carboniferous Kladno Formation of the Czech Republic.

Microbrachis was an elongated, salamander-like creature, about 15 centimetres (6 in) long, with over 40 vertebrae instead of the average 15–26 in its living relatives.

It had minute limbs, and probably swam using fish-like lateral body movements.

Microbrachis probably fed on fresh water plankton such as shrimp.

Microbrachis was pedomorphic, retaining its larval gills in adulthood.