An enantioselective three‐component reaction of aldehydes, amines, and alkynes in water by using a bis(imidazoline)–CuI catalysts having a hydrophobic substituent and sodium dodecyl sulfate as a surfactant was developed. The reaction was applied to a broad range of aldehydes and alkynes to give opticallyactivepropargylamines with excellent yields (up to 99 %) and enantiomeric excesses (up to 99 % ee)