234Waardenburg Syndrome (WS) (瓦登伯革氏症侯群)
235Waldenstrom's Macroglobulinemia (WM) (華氏巨頭蛋白血症)
236Walker-Warburg Syndrome (WWS) (Walker-Warburg綜合症)
237WDR45 (Genetic Disorder)
238Wells Syndrome (韋爾斯綜合症)
239West Syndrome-Infantile Spasms (韋氏症-嬰兒痙攣症)
240Williams Syndrome (WS) (威廉氏症候群)
241Wilson's Disease (WD) (威爾遜氏症)
242Wolf-Hirschhorn Syndrome (WHS) (沃夫-賀許宏氏症候群)
243Wolfram Syndrome (Wolfram症候群)
244Worster-Drought Syndrome (WDS)
245WWOX Syndrome (Genetic Disorder)