Oton Vinski (born Otto Weiss; 20 March 1877 – 1942) was an influential Croatian banker who was killed during the Holocaust.

He was employed as a procurator and chief executive of the Croatian Discount Bank in Zagreb.

During World War II, Vinski was arrested and deported to Jasenovac concentration camp together with his mother in law Ilka Alexander, where they were both killed in 1942.

By mere chance Vinski's wife and sons had survived the Holocaust.

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