Joanna Siedlecka (born 24 February 1949 in Białystok, Poland)  is a  writer, reporter, journalist, member of the Polish Writers Association (Stowarzyszenie Pisarzy Polskich), and the author of 10 books, 4 collections of essays and 6 biographies, notably, about the lives of writers: Witold Gombrowicz, Witkacy, and Jerzy Kosiński.
Joanna Siedlecka, born on February 24, 1949, in Białystok, Poland, is a writer, reporter, journalist, member of the Polish Writers Association (Stowarzyszenie Pisarzy Polskich), and author of ten books, four essay collections, and six biographies, focusing on writers: Witold Gombrowicz, Witkacy, and Jerzy Kosiński.