| Honorific-Prefix: | Prof. |
| Piotr Ostaszewski | |
| Order: | 7th |
| Ambassador From: | Poland |
| Country: | South Korea |
| Term Start: | 24 September 2017 |
| Term End: | July 2024 |
| Predecessor: | Krzysztof Majka |
| Birth Date: | 5 April 1964 |
| Birth Place: | Żyrardów, Poland |
| Nationality: | Polish |
| Alma Mater: | University of Warsaw |
| Profession: | Historian, political scientist, translator, professor |
Piotr Ostaszewski (born 5 April 1964, Żyrardów) is a Polish historian, political scientist and translator. From 2017 to 2024 he served as an ambassador to South Korea.
Piotr Ostaszewski was born on 5 April 1964 in Żyrardów. Ostaszewski sat for an M.A. and Ph.D. in history at the University of Warsaw respectively in 1990 and 1998 for his thesis on Harry S. Truman's policy toward Vietnam. In 2004 he attained a post-doctoral degree at the Adam Mickiewicz University in Poznań. In 2013 he became a full professor. He specializes in 20th-century international relations in Asia.[1]
Between 1990 and 2000 he worked at the University of Warsaw American Studies Center. In 2000 he has been visiting professor at Kent State University giving lectures on the US-China modern relations and modern history of Cambodia. In 2000 he became lecturer at the Warsaw School of Economics. Since 2005 he has been Head of Department of Political Studies and, between 2012 and 2016 vice-rector for teaching and student affairs.[2]
On 24 September 2017 he was appointed ambassador to South Korea.[3] He ended his term in July 2024.
He is married. He has no children. He speaks English and Italian.[4]