Kolbrún Halldórsdóttir (born 31 July 1955) is an Icelandic politician with the Left-Green Movement. She was a member of the Althing (Iceland's parliament) for Reykjavík constituencies from 1999. She didn't get re-elected in 2009. She was Minister for the Environment and Minister for Nordic Cooperation, in 2009. She has been s President of ECA – European Council of Artists (2011).

Supporting prisoner artists

Kolbrún Halldórsdóttir, as the president of ECA, joined the biggest international campaign Freemuse for the release of Iranian musician Mehdi Rajabian and his brother, film-maker Hossein Rajabian; he was signed by the following of the ARJ group.