Małgorzata Sikorska-Miszczuk was born in Warsaw.

She graduated from the Faculty of Journalism and Political Science and Gender Studies at the University of Warsaw. She is also a graduate of the two-year Screenwriting Course at the Leon Schiller National Film, Television and Theatre School in Łódź.

Later in life, she worked in journalism and as a copywriter in advertising agencies.

As a playwright she debuted in 2006 with an awarded play “The Death of the Squirrel Man” and continued her career as a freelance creative writer. Her plays have been translated into English, German, French, Spanish, Swedish, Serbian, Slovenian, Croatian, Czech, Slovak, Russian, Romanian, Ukrainian, and Turkish. Her works have also been staged and presented as staged readings in Poland, Austria, Germany, France, Sweden, the UK, the Czech Republic, Slovakia, Russia, Romania, Belgium, Spain, Turkey, Mexico, and the USA. Winner of many Polish and European theatre awards including Poland's most important drama award - Gdynia Drama Award (2012), Ferdinand Vanek prize in the Czech Republic (2013), French Prix Godot (2017).

Jury member of drama, directing and radio play competitions. Member of Pen Club America and Society of Authors ZAiKS. The New York Public Library Dorothy and Lewis B. Cullman Center for Scholars and Writers 2025-2026 Fellow.