Predrag Šustar (born 11 March 1970) is a Croatian philosophy professor and politician who served as Minister of Science, Education and Sports in the Cabinet of Tihomir Orešković from 22 January 2016 until 19 October 2016.

From September 5 until June 4, 2007, he was Fulbright visiting scholar at the Columbia University, with his mentor for the project "Science and Human World View: Kant’s Teleology Account" being professor Philip Kitcher.

[6][7] On May 25, 2016, head of the working group for the implementation of a comprehensive curricular reform, professor Boris Jokić and his team resigned citing political pressure from some members of the conservative Patriotic Coalition.

SDP member Sabina Glasovac, Vice-Chairwoman of the Committee on Education, Science and Culture of the Croatian Parliament, said that Šustar remained silent and that he was nothing more than a "formal minister" in an "incompetent government".

[10] Trade Union of Croatian Teachers, which represented 28.000 people, stated that they were "ready to organize a mass protest within three days if the government doesn't show a clear will to continue curricular reform.

[12] On May 31, 2016, President Kolinda Grabar-Kitarović issued an open letter in which she expressed her support to Boris Jokić urging him not to give up, and calling minister Šustar to allow the continuation of the preparation of curriculum reform and its implementation as soon as possible.

[13] Shortly afterward, Grabar-Kitarović held a meeting with minister Šustar and professor Jokić on which they all agreed that the reform should continue immediately.

[14] On June 1, 2016, more than 40.000 people participated in the pro-reform "Croatia Can Do Better" protests that were held in Zagreb, Split, Križevci, Dubrovnik, Slavonski Brod, Osijek, Bjelovar, Rijeka, Virovitica, Poreč, Pula, Zadar, Korčula, Shanghai, Budapest, Berlin, Paris, London and New York City.