Robinsichthys arrowsmithensis is a species of goby found on the Arrowsmith Bank in the Caribbean Sea at depths of from 92 to 596 metres (302 to 1,955 ft).

This species grows to a length of 2.3 centimetres (0.91 in) SL.

This species is the only known member of its genus.

[2] The name of this genus honours C. Richard Robins (1928-2020), an American ichthyologist who was an important contributor to the study of gobies of the Americas.

This Gobiidae-related article is a stub.