WS1 can refer to:
Waardenburg syndrome, a genetic disorder Crown of Slaves, the 1st book in David Weber's Wages of Sin series WS-1, (Weishi Rockets-1) a 302mm self-propelled multiple rocket launcher FA WSL 1, the top tier of the FA Women's Super League in English football WS1, a candidate phylum of bacteria Ampere WS-1, a short-lived laptop manufactured in Japan