Rebecca Harms (born 7 December 1956) is a German politician and Member of the European Parliament for Alliance '90/The Greens, part of the European Greens. Since 2010 she has been the president of the The Greens–European Free Alliance group in the European parliament.
Harms grew up in a village near Uelzen in Lower Saxony. She finished school with the Abitur in 1975 and began her career with an apprenticeship in plant nursery and landscape gardening. During the following years she became active in the anti-nuclear movement and began to study at university. In 1984 Undine-Uta Bloch von Blottnitz (de) employed her as an assistant after being elected to the European Parliament. She returned to her home in 1988 and made numerous documentaries. From 1994 to 2004 she was a member of the Parliament of Lower Saxony. From 1998 she was leader of her party. She is a member of the Parteirat of her party.
In 2004 she was the top candidate of the Alliance 90/The Greens for the Elections to the European Parliament and in 2009 she was elected again for parliament.
She lives in the Wendland region which became known nationwide for the Gorleben atomic waste site and she is declared opponent of nuclear power.
In 2006 Rebecca Harms commissioned two UK scientists for an alternate report, entitled TORCH, to the disputed November 2005 IAEA report on the consequences of the Chernobyl disaster.