| Maria Leissner | |
| Occupation: | Swedish politician |
| Birth Date: | 21 January 1956 |
| Birth Place: | Gothenburg, Sweden |
Maria Leissner (born 21 January 1956) is a Swedish politician and former party leader of the Swedish Liberal People's Party (1995–97). Between 2000 and 2004 she was Sweden's ambassador to Guatemala.[1] In January 2007 she was appointed Ambassador-at-large for Democracy. In April 2012 she was appointed Secretary-General of Community of Democracies.