Maike Schaefer (born 2 June 1971 in Schwalmstadt) is a German biologist and politician of Alliance 90/The Greens.

From June 2015 to August 2019, Schaefer was the parliamentary group leader of her party in the Bremen Parliament, of which she was a member from 2007 to 2019.

She remained at the UFT in the field of ecotoxicology and investigated the environmental effects of pollutants in soil and water on behalf of the institute.

In September 2003, Schaefer was elected as a member of the green state board, where she was responsible for the areas of environment and science.

[3] After an increase in votes of around 2 percentage points for the Greens in the Bremen state elections in 2019, Schaefer spoke out in favour of coalition negotiations with the SPD and Die Linke following exploratory talks.