Ognjeslav Utješenovic Ostrožinski (spelled Utješinovic in some sources; Serbian Cyrillic: ???????? ??????????? ???????????; 21 August 1817 – 8 June 1890) was a croatian politician and writer.
He is mainly remembered for his role in the Illyrian movement led by Ljudevit Gaj which promoted unity among South Slavs and called for Croatia's independence at the time when the country was part of Austria-Hungary.