A wheat variety designated XW14B, the plants and seeds of wheat variety XW14B, methods for producing a wheat plant produced by crossing the variety XW14B with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety XW14B with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety XW14B are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety XW14B and to wheat varieties or breeding lines produced by those methods are also provided.