Josip Kregar (1 January 1953 – 15 August 2020) was a Croatian sociologist, jurist and politician.
Kregar was born in Ogulin and went to grade school in Novi Vinodolski.
He had authored and co-authored six books on the subject of law sociology, had participated in several research projects on the topic of public administration and has been a consultant for both the Zagreb city government and the Croatian Government on these and similar issues.
Kregar authored the Croatian translation of the European Convention on Human Rights.
In the 2009 local elections, Kregar organized an independent (non-party) list and achieved substantial success, joining forces with Velimir Srića (another University of Zagreb professor, from the Faculty of Economics) to win five seats in the city council, as well as having entered the second round of mayoral elections, despite majority support for Milan Bandić.