Gobius fallax, or Sarato's goby, is a species of goby native to the Mediterranean Sea where it is found in inshore waters in locations with rocks and crevices for shelter at depths of from 0 to 32 metres (0 to 105 ft). This species can reach a length of 9 centimetres (3.5 in) TL. There is a single record from the Canary Islands.