Nada Kostić is a medical doctor, academic, and politician in Serbia. She briefly served as Serbia's minister of health in the transitional government that was established after the fall of Slobodan Miloševic's administration in 2000. Kostić was awarded a mandate for the National Assembly of Serbia on 17 April 2018. She is a member of the Democratic Party but serves in parliament as an independent deputy.
Kostić joined the Democratic Party of Serbia on its formation in 1992. The party contested the 1992 Serbian parliamentary election as part of the Democratic Movement of Serbia alliance, and Kostić received the twenty-fourth position on its electoral list in Belgrade. The party won fifteen seats in the city, and she was not afterwards selected as part of its parliamentary delegation. The DSS contested the 1993 Serbian parliamentary election on its own. Kostić received the sixth position on its electoral list in Belgrade. The party won four seats in the city, and she was once again not selected for its delegation.
After the fall of Slobodan Milošević's administration in October 2000, Serbia was governed by a coalition of the Socialist Party of Serbia, the Democratic Opposition of Serbia, and the Serbian Renewal Movement until new elections could be called and a new government formed. The DOS was itself a coalition of several opposition parties, including the DSS. The party received the ministry of health in the new coalition government, and Kostić was appointed as minister on October 24, 2000. In January 2001, Kostić indicated that the ministry of health would appoint a commission of scientists and doctors to monitor the possible long-term effects on the Serbian population of depleted uranium munitions fired by North Atlantic Treaty Organization forces in the 1999 NATO bombing of Yugoslavia. She added that "there no reason for panic" in the matter, and her ministry indicated that there was no evidence of immediate danger. The Democratic Opposition of Serbia won a landslide victory in the 2000 Serbian parliamentary election. After the election, the Democratic Party of Serbia nominated Obren Joksimović to replace Kostić as health minister. Joksimović's nomination was criticized by many in the health sector; a group of doctors in Požarevac referred to him as unsuited for the role while describing Kostić as "the kind of person whose professional and ethical qualities fully suit a ministerial role, something that she has demonstrated in the work in the Serbian interim government and in her public appearances so far." This notwithstanding, Joksimović's nomination went through and Kostić stood down from the ministry on January 25, 2001. She resigned from the Democratic Party of Serbia on the same day.
Kostić was elected to the local assembly of Belgrade's Stari Grad municipality in 2016. She received the eighteenth position on the electoral list of the It's Enough – Restart association in the 2016 Serbian parliamentary election. The list won sixteen mandates, and she was not immediately elected to the assembly. Kostić left DJB shortly after the 2016 election, citing differences with the association's leadership. She appeared in the twelfth position on the electoral list of Nikola Sandulović's Republican Party in the 2018 Belgrade city assembly election, although she later said that she had been included on the list without her permission. The party did not, in any event, win any mandates. In March 2018, DJB delegate Miloš Bošković announced his resignation from the assembly, and Kostić was the next candidate eligible to take a mandate. The newspaper Danas reported that she was once again ready to serve with the DJB group in the assembly despite her past disagreements with the organization. This notwithstanding, she choose to sit as an independent member after receiving a mandate on April 17. She also indicated that she had joined the Democratic Party after leaving DJB two years earlier; when asked why she did not join the DS group in the assembly, she responded that it would not be appropriate for her to do so as she had been elected on a different list.
