Zdenko Matthew "Zed" Seselja (born 27 March 1977) is an Australian Liberal Party politician and Assistant Minister for Social Services and Multicultural Affairs, serving in the latter role since July 2016. He was elected to the Australian Senate as a representative of the Australian Capital Territory for a term which commenced on 7 September 2013. He was a member of the Australian Capital Territory Legislative Assembly from 2004 to 2013. He was the territory's 12th Opposition Leader, serving in that position from December 2007 to January 2013. Seselja is of Croatian descent.
Seselja was born in Canberra Hospital, then called the Woden Valley Hospital, to Ljudevit and Katica Seselja, both immigrants from Croatia (when it was part of Yugoslavia). His mother arrived alone in late 1970, and five months later she married Ljudevit, who had arrived three years earlier. Both held two jobs each.
Seselja attended St Mary MacKillop College. He graduated from the Australian National University with a Bachelor of Arts degree in 1997, a Bachelor of Laws degree in 1999 and a Graduate Diploma in Legal Practice in 2002. He received a Graduate Certificate in Public Administration in 2000 from the University of Canberra. He was admitted as a legal practitioner in 2002.
While attending university, he worked at Woolworths Supermarkets from 1995–98; at MacKillop Catholic College (now St Mary MacKillop College) in 1998 as a cleaner; at the Australian Fisheries Management Authority from 1998–99 as a legal assistant; and at the Commonwealth Department of Transport and Regional Services from 2000–04 as a policy officer, lawyer, and then a senior lawyer.