'Cowboy' (Reg. No. CV-1095, PI 668564) hard red winter wheat (Triticum aestivum L.) was developed by the Colorado Agricultural Experiment Station and released cooperatively by Colorado State University (CSU) and the University of Wyoming (UWYO) in August 2011. In addition to researchers at CSU and UWYO, USDA-ARS researchers at Manhattan, KS, St. Paul, MN, and Pullman, WA, participated in its development. Cowboy was selected from the cross CO980829/'TAM 111′ made in 2001 at Fort Collins, CO. TAM 111 (PI 631352) is a hard red winter wheat cultivar released by Texas A&M University in 2002. CO980829 is an experimental line from CSU with the pedigree 'Yuma' (PI 559720)/PI 372129// CO850034/3/4*Yuma/4/NEWS12. Cowboy was selected as an F3:4 line in July 2005 and assigned experimental line number CO050322. Cowboy was released because of its superior grain yield and adaptation under nonirrigated and irrigated production systems in Wyoming and its milling and baking quality characteristics.