Ga‐neration X: Well‐defined neutral and cationicgallium(III) halidecomplexes have been synthesized and evaluated in catalysis. Both the (NHC)GaX3/AgSbF6 catalytic mixture and isolated (NHC)GaX2+ species function as exquisite π‐Lewis acids in typical GaX3‐catalyzed reactions (see scheme). The cationiccomplexes are more active than GaX3 and yet more resistant to hydrolysis, which allows lower catalytic