Oliver Krischer (born 26 July 1969) is a German politician of the Alliance '90/The Greens who has been serving as State Minister for Environment, Nature Protection, and Transport in the government of Minister-President of North Rhine-Westphalia Hendrik Wüst since 2022.

[1] From 2021 to 2022, Krischer briefly served as Parliamentary State Secretary in the Federal Ministry for Economic Affairs and Climate Action in the coalition government of Chancellor Olaf Scholz since 2021.

From 2002 to 2009 he worked as scientific assistant for the Green parliamentary group in North Rhine-Westphalia in the thematic fields of energy, agriculture and land use regulation.

From 2013 until 2021, Krischer served as vice chairman of the Green Party's parliamentary group under the leadership of co-chairs Katrin Göring-Eckardt and Anton Hofreiter; in this role, he was responsible for the topics, energy, environment, climate, reactor safety, animal protection, agriculture and transportation.

[3] In the negotiations to form a coalition government under the leadership of Minister-President of North Rhine-Westphalia Hendrik Wüst following the 2022 state elections, Krischer was part of his party’s delegation.