The Ozark bass (Ambloplites constellatus) is a species of freshwater fish in the sunfish family (Centrarchidae) of order Centrarchiformes.

[4] The brownish-green body has an irregular pattern of black speckling.

[2] The Ozark bass occurs in creeks and small to medium permanent rivers with high levels of dissolved oxygen, plentiful aquatic vegetation, low turbidity, and sand or rocky beds substrates, with a preference for clear rocky pools close to the banks, boulders, or submerged wood.

Males create nests in gravel or small stone substrates, and these are normally situated around a metre of cover.

The IGFA world record for the species is a twoway tie with fish weighing 0.45 kg (1 lb 0 oz) caught from Bull Shoals Lake in Arkansas and the James River in Missouri.