Obtaining Croatian citizenship is proscribed by The Croatian Citizenship Act (Official Gazette 53/91,70/91, 28/92, 113/93, 4/94, 1300/11, 110/15)
For more detailed information on the matter of acquiring Croatian citizenship please visit: http://www.mvep.hr/en/consular-information/citizenship/
Hereby you can find simplified information on the procedure to obtain the Croatian citizenship.
There are two major group of eligible applicants:
Note: Spouses of Croatian nationals can only obtain citizenship if they live in Croatia. Croatia does not grant citizenship based on investment or ownership of a property or real-estate in Croatia.
IMPORTANT NOTICE on legalizing documents!!!
All foreign official documents must be legalized and translated into Croatian Language if one needs to use them in Croatia.
In order to use an Irish document in Croatia most of the which are issued by the Irish authorities (e.g. Certified Copy of an Entry of Birth, Certified Copy of an Entry of Marriage c, Certified Copy of an Entry of death, Power of attorney) and translated into Croatian by an official interpreter in Ireland or by a certified court interpreter in Croatia. General information on the legalization of documents process is available at: http://www.mvep.hr/hr/konzularne-informacije/legalizacija-isprava/.
In order to use documents from other countries (like Australia, New Zealand or USA) you will have to obtain information on legalization process for the respected authorities of the country where the document was issued.
The applicant needs to submit the application in person along with Short Term Test of knowledge of the Croatian history, culture and language in the presence of the Croatian Consul. There are 15 questions in the test (out of 100 publicly available https://narodne-novine.nn.hr/clanci/sluzbeni/2012_10_118_2563.html ) and 10 correct answers are needed to pass it.