The Nesmith Cougar is a light aircraft that was developed in the United States in the 1950s and marketed for homebuilding.

[1] The design, by Robert Nesmith,[2] is a conventional high-wing, strut-braced monoplane with fixed tailwheel undercarriage.

The fuselage and empennage were of welded steel-tube construction, while the wings were of wood, and the whole aircraft was fabric-covered.

[3] When a modified Cougar won an Experimental Aircraft Association (EAA) design competition in 1963, that organization took over selling plans.

The name came from the college of Nesmith's daughter, the University of Houston, whose athletic mascot is a cougar.