(born 26 April 1938 in Mala Mlaka, near Zagreb) is a Croatian politician and lawyer.

Therefore his two non-consecutive ministerial terms (1995–2000 and 2003–2010) amount to a total of 11 years and 87 days, the longest tenure of any minister in a Croatian Government since independence in 1991.

Biškupić graduated from the University of Zagreb's Faculty of Law, and later earned a master's degree in museology at postgraduate studies of librarian, documentation and information sciences at University of Zagreb's Faculty of Philosophy.

From 1974 to 1980 he worked at a law firm based in Zagreb,[1] and he is also notable for editing publications on visual arts published by the National and University Library.

In 1990 Biškupić joined the Croatian Democratic Union[1] party (HDZ) and in 1992 was appointed assistant to the Minister of Culture.