He was born in December 21, 1965. Bad Urach, Germany. His parents originally from Turkey. His father is Circassian origin, mother is from Istanbul. After qualifying for advanced technical college entrance he studied social pedagogy at the Evangelical Technical College.
Özdemir has been a member of the Green Party since 1981. From 1987 he started his career as an educator and freelance journalist. Now, he is the German Green Party is the Co-Chairman.