Plön – Neumünster is an electoral constituency (German: Wahlkreis) represented in the Bundestag.

In the 2002 election, the Amt of Boostedt-Rickling was transferred to Plön – Neumünster from the Segeberg – Stormarn-Nord constituency.

It was first held by the Social Democratic Party (SPD) from 1976 until 1983, during which time it was represented by Horst Jungmann.

It was then won by the Christian Democratic Union (CDU), and represented by Karl Eigen for a single term.

He was succeeded by party fellow Melanie Bernstein in 2017, who was defeated by the SPD's Kristian Klinck in 2021.

Yellow background denotes an electorate win by a list member, or other incumbent.

Yellow background denotes an electorate win by a list member, or other incumbent.