Aristochromis christyi is a species of fish in the family Cichlidae, which is endemic to Lake Malawi in Africa.

The female and juvenile A, christyi are similar to each other in colour having mainly silvery bodies marked with longitudinal black lines one from which runs from the nape to the tail and with the other along the base of the dorsal fin.

As the males reach sexual maturity they lose their stripes and the body colour changes to blue, at the same time the ventral fins change colour to orange in the breeding season.

[6] To feed A. christyi searches among rocks and when it finds prey it turns sideways and puts its sizeable, laterally compressed mandibles into rocky cracks capturing any small fish which may be hiding among the rocks.

[4] The specific name honours the English doctor and zoologist Cuthbert Christy (1863-1932), the collector of the type.