Apistogramma hongsloi is a species of dwarf cichlid fish, native to the Orinoco basin in South America.

The wild forms are infrequently seen in the aquarium trade, as they are not as colorful as the selectively bred strains.

They do well in planted tanks with leaf litter and/or driftwood which release tannins, which in turn lower the pH of the water.

Like most Apistogramma species, A. hongsloi will sometimes lay eggs underneath leaves, driftwood, artificial caves, clay pots, or other secluded crevices inside an aquarium, given that all other breeding conditions are met, such as correct water parameters, adequate nutrition and appropriate choice of tankmates.

In the specific name the author Sven O. Kullander is honouring the collector of the type, the aquarist and fish-disease specialist, Thorbjörn Hongslo of the National Veterinary Institute in Uppsala.