Lesueurina platycephala, the flathead pygmy-stargazer, is a species of southern sandfish endemic to the coastal waters of southern Australia.

It occurs in areas with a sandy substrate and turbulent waters at depths of from near the surface to 1 metre (3.3 ft).

This species grows to a length of 11 centimetres (4.3 in) SL.

[1] It is an ambush predator which occurs from Fraser Island in Queensland south along the Australian coast, including Tasmania, and west to Coral Bay, Western Australia.

[2] The generic name honours the French artist and naturalist Charles Alexandre Lesueur (1778-1846) who visited Australia on the vessels Géographe and Naturaliste under the leadership of Nicolas Baudin (1880-1804)[1] and who later worked as an ichthyologist in the Academy of Natural Sciences of Philadelphia.