|Born||22 April 1961|
|Known for||Former Secretary-general for the Organization for Security and Co-operation in Europe (OSCE)|
Thomas Greminger (born 22 April 1961) is a Swiss diplomat. He was born in Lucerne.
Greminger served as secretary-general for the Organization for Security and Co-operation in Europe (OSCE), from July 2017 to July 2020.
- Gmür, Heidi. "Neuer Schweizer OSZE-Generalsekretär Thomas Greminger "Heute haben wir eine tiefe Vertrauenskrise"". Neue Zürcher Zeitung. Retrieved 25 July 2017.
- Members International Gender Champions (IGC).