| Kai Jan Krainer | |
| Office: | Member of the National Council |
| Term Start: | 20 December 2002 |
| Party: | Social Democratic Party |
| Birth Date: | df=yes 9 September 1968 |
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,[1] and has served as deputy group leader of the Social Democratic Party since 2023.[2]