- Source: Kai Jan Krainer
- Kai Jan Krainer
- Vienna (National Council electoral district)
- List of members of the 27th National Council of Austria
- Same-sex marriage in Austria
- Vienna Inner South (National Council electoral district)
- List of members of the 26th National Council of Austria
- 2022 ITF Men's World Tennis Tour (April–June)
- List of members of the National Academy of Medicine
- 2022 ITF Men's World Tennis Tour (July–September)
- Mendel Lectures
Kai Jan Krainer (born 9 September 1968) is an Austrian politician of the Social Democratic Party. He has been a member of the National Council since 2002, and has served as deputy group leader of the Social Democratic Party since 2023.