| Term Start4: | 2012 |
| Term End4: | 2016 |
| Predecessor4: | José Manuel Pinto Teixeira |
| Successor4: | Hugues Mingarelli |
| Ambassador From5: | European Union |
| Country5: | the Holy See |
| Term Start5: | 2016 |
| Term End5: | 28 August 2020 |
| Predecessor5: | Laurence Argimon-Pistre |
| Successor5: | Alexandra Valkenburg |
| Birth Date: | 4 October 1958 |
| Ambassador From4: | European Union |
| Birth Place: | Kraków |
| Nationality: | Polish |
| Profession: | Diplomat |
| Alma Mater: | Jagiellonian University |
| Spouse: | Agnieszka Tombińska |
| Children: | 10 |
| Country4: | Ukraine |
| Jan Tombiński | |
| Order: | 1st |
| Ambassador From: | Poland |
| Country: | Slovenia |
| Term Start: | 1996 |
| Term End: | 1998 |
| Successor: | Maciej Szymański |
| Ambassador From2: | Poland |
| Successor3: | Marek Prawda |
| Country2: | France |
| Term Start2: | 9 April 2001 |
| Term End2: | 28 December 2006 |
| Predecessor2: | Stefan Meller |
| Successor2: | Tomasz Orłowski |
| Order3: | 5th |
| Ambassador From3: | Poland |
| Country3: | the European Union |
| Term Start3: | 1 February 2007 |
| Term End3: | 31 August 2012 |
| Predecessor3: | Marek Grela |
Jan Tadeusz Tombiński (born 4 October 1958, Kraków)[1] is a Polish historian and diplomat, Poland ambassador to Slovenia (1996–1998), France (2001–2006), permanent representative to the European Union (2007–2012), and EU ambassador to Ukraine (2012–2016) and the Holy See (2016–2020).
Tombiński in his youth, he was practicing fencing. In 1978, he was Poland junior vice champion in foil. He received his Master titles from German studies (1984) and history (1985) at the Jagiellonian University, Kraków. Shortly after graduation he was employed by the university library, since 1987 he was lecturer at the Jagiellonian University Institute of History.[2]
During 1980s, he was active member of Poland dissident movement. Between 1981 and 1984 he was deputy head of the Jagiellonian University Independent Students’ Association. For a short period of time he was there head of the students' union.[3] He was also editor of the illegal self-publishing magazines.[4]
In 1990, Tombiński joined the Ministry of Foreign Affairs. He began his career as the Third Secretary at the embassy in Prague. In 1995, he was posted at the newly formed embassy in Ljubljana, following year being nominated ambassador to Slovenia, accredited also to Bosnia and Herzegovina. From 1998 to 2001 he was director of the MFA Department of Europe. Later, he was ambassador to France (2001–2006) and permanent representative to the European Union (2007–2012).[5] Later, he joined the European External Action Service, serving as an EU ambassador to Ukraine (2012–2016)[6] and the Holy See (2016–2020).[7] From 2022 he served as EU High Level Advisers in the Republic of Moldova.[8] On 20 August 2024, he took the post of Chargé d'affaires of Poland to Germany.[9]
Besides Polish, Tombiński speaks English, German, French, Slovene, Czech, and Ukrainian.[10] He is married to Agnieszka Tombińska, with ten children.[11]