Kateryna Zelenko (Ukrainian: Катерина Михайлівна Зеленко; born 10 August 1980) is a Ukrainian diplomat who served as the spokesperson of the Foreign Ministry of Ukraine between 2018 and 2020.^[1][2][3] She was appointed as the Ambassador of Ukraine to the Republic of Singapore by President Volodymyr Zelensky on 14 November 2020.^[1]

Zelenko was born in Vinnytsia, Vinnytsia Oblast on 10 August 1980. She graduated from the Taras Shevchenko National University of Kyiv in 2002. She holds a PhD in international relations, and is an English translator.

Since 2002, she is at the diplomatic service of Ukraine. She worked at the Embassy of Ukraine in the Republic of Austria and the Permanent Delegation to international organisations in Vienna, twice as the first secretary of the Embassy of Ukraine in Germany.^[4] During the period between foreign travel she occupied various positions in the Department of Personnel, the Department of the European Union and the Political Department of the Ministry of Foreign Affairs of Ukraine.

In 13 November 2020, she has been the Ambassador Extraordinary and Plenipotentiary of Ukraine in Singapore.^[5] In 13 December 2021, she became the Ambassador Extraordinary and Plenipotentiary of Ukraine to Brunei on a part-time basis.^[6] On 22 December 2021, she was assigned the diplomatic rank of Envoy Extraordinary and Plenipotentiary of the second class.^[7]

During recent years Kateryna Zelenko was responsible for interaction with mass media and informative and explanatory work.^[8]