Paul Nieder-Westermann (born 3 October 1892 in Langendreer – died 10 October 1957 in Bochum) was a German politician of the NSDAP.
After he completed the adult education center in Langendreer he begann to study upon the agrarian high school Hohenheim in Stuttgart. From 1916 to 1918, he took part on the Western front in the First World War.
On 1 April 1933, Nieder-Westermann was appointed to the leader from the upper relay Westfalen (South) of the NSKK. Finally he became Upper Group Leader on the NSKK in year 1943. With it Nieder-Westermann sat as congressman for the constituency 18 (Westfalen) in the National Socialist Reichstag.