Péter Niedermüller (born 3 September 1952) is a Hungarian politician.

From July 2014 to July 2019, he served as a Member of the European Parliament, representing Hungary for the Democratic Coalition.

[1] In the 2019 Hungarian local elections, he was elected as the Mayor of Erzsébetváros as the joint candidate of the opposition (MSZP-P-DK-LMP-Momentum, with external support of Jobbik).

Niedermüller also served as the Treasurer of the Group of the Progressive Alliance of Socialists and Democrats in the European Parliament.