Daniel Ivin (born Danko Goldstein; 16 April 1932 – 20 June 2021) was a Croatian writer, politician and human rights activist.

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Ivin was born in April 1932, and raised in Karlovac, in a Jewish family.^[1] His elder brother was Slavko Goldstein.^[2][3]

His father, Ivo ("Izchak") Goldstein, was a book dealer in Karlovac. In 1941, his father was murdered by the Ustaše at the Jadovno concentration camp.^[4]

As a boy, Danko joined the Partisans and served as a courier. At the end of 1942, he watched over Ustaše captive Jure Francetić and informed the Partisan headquarters about the latter's health.^[1] He changed his name from Danko to Daniel/Danijel, and surname from Goldstein to Ivin (meaning son of Ivo) in honour of his late father.^{[citation needed]}

From 1949–52, Ivin lived in Israel and served in Israel Defense Forces.^[1] Upon his return to Croatia he worked as a journalist. Later he worked under Franjo Tuđman at the "Institute for history of the labor movement" in Zagreb. In 1966, for his attempt to start the non-Communist newspaper Slobodna riječ (Free word), he was sentenced to several months in prison under charges of organizing the assassination of Josip Broz Tito.^[1]

After being released, Ivin lived in Switzerland and Great Britain.^[1] In 1989, together with his brother Slavko, Ivin founded the Croatian Social Liberal Party.^[5]

In 1993 he co-founded the Croatian Helsinki Committee, serving as president in 2007.^[6] In 2012 he was elected as a new president of the "Council of the Croatian anti-fascists".^[7]

Ivin died on 20 June 2021, at the age of 89.^[8]

• Hrvatsko pitanje: Nitko ne gleda kroz prozor sam (1999), Nakladni Zavod Matice Hrvatske, Zagreb
• Revolution und Evolution in Jugoslawien (1968), Francke Verlag, Bern