AAC Redwater is a hard red spring wheat (Triticum aestivum L.) adapted to the shorter season wheat-growing regions of the Canadian prairies. AAC Redwater was evaluated in the Parkland Wheat Cooperative Test in 2009, 2010, and 2011. AAC Redwater was significantly (P < 0.05) higher yielding than Katepwa (6.4%) and AC Splendor (7.5%) and was not significantly different in grain yield compared to CDC Teal and CDC Osler. AAC Redwater had maturity similar to AC Splendor, matured a day earlier than Katepwa, and was significantly earlier maturing (2 d) than CDC Teal and CDC Osler. AAC Redwater was significantly shorter than all check cultivars and had a similar mean lodging score to the check cultivars. AAC Redwater is resistant to moderately resistant to leaf and stem rust, comparable to AC Splendor. AAC Redwater was resistant to intermediate in its field reaction to stripe rust and intermediate in its reaction to the Ug99 stem rust race, similar to CDC Teal. At the time of registration, AAC Redwater met the end-use quality specifications of the Canada Western Red Spring wheat class.