| Pierre de Boissieu | |
| Office: | Secretary-General of the Council of the European Union |
| Term Start: | 1 December 2009 |
| Term End: | 26 June 2011 |
| Predecessor: | Javier Solana |
| Successor: | Uwe Corsepius |
| Birth Date: | 14 June 1945 |
| Birth Place: | Paris, France |
| Profession: | Economist |
| Alma Mater: | National School of Administration |
| Relatives: | Christian de Boissieu (brother) |
Pierre de Boissieu (pronounced as /fr/; born 1945[1]) is a French diplomat and former French ambassador to the European Union (EU). He was the Secretary-General of the Council of the European Union from 1 December 2009 until 26 June 2011. In this post he was preceded by Javier Solana and was succeeded by Uwe Corsepius.[2] [3] Prior to being Secretary General he was Deputy Secretary-General from October 1999 to 30 November 2009.