Małgorzata Walewska (born July 5, 1965 in Warsaw, Poland) is a Polish opera singer and dramatic mezzo-soprano.

A dramatic mezzo-soprano, Małgorzata Walewska, graduated from the Fryderyk Chopin Academy of Music under the tutelage of Halina Słonicka. She is a laureate and finalist of many international competitions, such as Alfredo Kraus in Las Palmas., Luciano Pavarotti in Philadelphia, Belvedere in Vienna and Stanisław Moniuszko in Warsaw.

Małgorzata Walewska recorded numerous CDs, starting with pieces which belong to her usual repertoire (e.g. Voce di donna published by Sony Classical), through Christmas Carols (Christmas Time - Traditional Polish Christmas Carols published by DUX), Crossover arrangements (Walewska and Friends issued by DUX, or Mezzo by Sony Music Poland CD), arias of G.F. Händel’s, and religious and organ pieces (Farny issued by DUX). On the list of the American magazineTime in 1999, she was included among the ten most famous Poles as "one of the stars that illuminate the way for Poland in the next millennium". In a ranking Pearls of the Polish Economy 2008 she was awarded with Honorary Pearl in the culture category, for promoting Polish culture in the world. In October 2016, Małgorzata Walewska has received a Gloria Artis medal of the highest class in recognition of her tremendous contribution to Polish culture. It is the most prestigious decoration bestowed by the Polish Ministry of Culture and National Heritage.

Since 2014, she is one of the Juries in a popular TV show Twoja twarz brzmi znajomo (polish version of Your Face Sounds Familiar). In 2015, Małgorzata Walewska was nominated Artistic Director of the Ada Sari International Vocal Artistry Festival and Competition held in Nowy Sącz, Poland.

She voiced Madame de Garderobe in the Disney movie Beauty and the Beast.