‘Endeavor’ (Reg. No. CV‐341, PI 654824), a two‐rowed winter malting barley (Hordeum vulgare L.), was developed and submitted for release in 2007 by the USDA–ARS, Aberdeen, ID, in cooperation with the University of Idaho Agricultural Experiment Station. Endeavor is a selection from the cross ORWM8406/‘Harrington’. ORWM8406 has the pedigree ‘Carstens’/‘Riso’ mutant 1508 (F1)//‘Cossack’. Riso mutant 1508 is an ethyleneimine‐induced mutant of ‘Bomi’. Progenitors of ORWM8406 are all European barleys. Harrington is a two‐rowed spring malting barley released by the Crop Development Centre, University of Saskatchewan, and is the current western two‐rowed malting industry standard. Endeavor was released because of its higher diastatic power compared with ‘Charles’, the most‐advanced two‐rowed winter malting barley adapted to Idaho.