| Ema Derossi-Bjelajac | |
| Office: | 6th President of the Presidency of the Socialist Republic of Croatia |
| Primeminister: | Ante Marković |
| Term Start: | 20 November 1985 |
| Term End: | 10 May 1986 |
| Predecessor: | Pero Car |
| Successor: | Ante Marković |
| Office2: | Deputy Speaker of Parliament |
| 1Blankname2: | Speaker |
| 1Namedata2: | Jure Bilić |
| Term Start2: | 1978 |
| Term End2: | 1982 |
| Office3: | Member of Parliament |
| 1Blankname3: | Speaker |
| 1Namedata3: | Jure Bilić |
| Term Start3: | 1978 |
| Term End3: | 1982 |
| Birth Name: | Ema Derossi |
| Birth Date: | 1926 5, df=yes |
| Birth Place: | Stermàzio, Italy (now Štrmac, Croatia) |
| Death Place: | Zagreb, Croatia |
| Party: | League of Communists of Yugoslavia |
| Spouse: | Boško Bjelajac |
| Alma Mater: | University of Zagreb |
| Profession: | Politician |
Ema Derossi-Bjelajac (3 May 1926 – 20 June 2020) was a Croatian politician who served as the President of the Presidency of the Socialist Republic of Croatia (a constituent republic of the Socialist Federal Republic of Yugoslavia) from 1985 until 1986. She was the first woman to hold a title equivalent to a head of state in modern-day Croatia.
She served in a number of high-ranking functions within the League of Communists of Croatia and the Croatian republican government of the period: notably, she was a Member of the Central Committee of the League between 1964 and 1974, and was a Member and Deputy Speaker of the Croatian Parliament (Sabor) between 1978 and 1982. She served in the Central Committee of the League of Communists of Yugoslavia from 1964 to 1968.
On 20 June 2020, she died in Zagreb, aged 94.[1] [2]