Legge, W. G., Tucker, J. R., Fetch, T. G. Jr., Haber, S., Menzies, J. G., Tekauz, A., Turkington, T. K. and Savard, M. E. 2014. AAC Synergy barley. Can. J. Plant Sci. 94: 797-803. AAC Synergy is a hulled two-row spring malting barley (Hordeum vulgare L.) cultivar with high yield and is widely adapted to western Canada. Developed from the cross TR02267/Newdale made in 2002, AAC Synergy was evaluated in the Western Cooperative Two-row Barley Registration Test (2009-2010) and the Collaborative Malting Barley Trials (2010-2011) conducted by the malting and brewing industry before being registered in 2012. AAC Synergy's excellent combination of agronomic traits, disease resistance and desirable malting quality traits should make it a useful cultivar for producers and the malting and brewing industry.