William Zev Salcer (4 June 1924 (Neporadza) – 6 December 2006) was a Slovak-Jewish Holocaust survivor and inventor.
He moved to Budapest and since Jewish students were banned from the Universities in Hungary, he took engineering courses in high school and worked as a welder's assistant while rooming with an uncle.
An illness forced him to return to Jelšava, where he was made a forced laborer and made to repair tanks for the Wehrmacht; shortly thereafter, in advance of the Soviet Red Army, he and his fellow prisoners were force-marched to the Mauthausen-Gusen concentration camp.
He experienced further discrimination in Czechoslovakia and fled to Israel, after receiving a draft notice for the Czechoslovak Army.
In 1952, after his discharge, he started a rubber factory and was elected to be the head of the association of Israeli manufacturers at age 28.