Mirjam Hannah Bikker is a Dutch politician who has served as the leader of the Christian Union since January 2023. She is also a member of the House of Representatives since 2021. She was previously elected to the municipal council of Utrecht in 2006 and Senate in 2015.

The Christian Union is a Christian-democratic political party in the Netherlands. The CU is a centrist party, maintaining more progressive stances on economic, immigration and environmental issues while holding more socially conservative positions on issues such as abortion and euthanasia. The party describes itself as "social Christian".