A novel double haploid maize line designated PHWWD and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing double haploid maize line PHWWD with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHWWD through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the double haploid line PHWWD or a trait conversion of PHWWD with another maize line. Inbred maize lines derived from double haploid maize line PHWWD, methods for producing other inbred maize lines derived from double haploid maize line PHWWD and the inbred maize lines and their parts derived by the use of those methods.