Carex ozarkana, the Ozark sedge, is a species of flowering plant in the family Cyperaceae, native to the U.S. states of Oklahoma, Texas, Arkansas, and Louisiana.

[2][3] A perennial forming loose tufts and reaching 110 cm (43 in), it is found growing in permanently wet soils.

The leaves sheaths are sometimes white mottled, green-veined near the collar, and Y-shaped.

The inflorescence are either open or dense, yellowish-brown in color, and between 2.3 and 8.4 centimeters long and between 6 and 17 millimeters wide.

The perigynia is either pale yellow or gold brown with green wings and beak.