In addition to theater, opera, TV, and film adaptations of his works, such as King Matt the First and Kaytek the Wizard, there have been a number of works about Korczak, inspired by him, or featuring him as a character.

Books:
Milkweed by Jerry Spinelli (2003) – Doctor Korczak runs an orphanage in Warsaw where the main character often visits him
Moshe en Reizele (Mosje and Reizele) by Karlijn Stoffels (2004) – Mosje is sent to live in Korczak's orphanage, where he falls in love with Reizele.
Set in the period 1939-1942.
Original Dutch, German translation available.
No English version as of 2009.

Once by Morris Gleitzman (2005), partly inspired by Korczak, featuring a character modelled after him
Kindling by Alberto Valis (Felici Editori, 2011), Italian thriller novel.
The life of Korczak through the voice of a Warsaw ghetto's orphan.
As of 2019, no English translation.

The Time Tunnel: Kingdom of the Children by Galila Ron-Feder Amit (2007) is an Israeli children's book in the Time Tunnel series that takes place in Korczak's orphanage.

The Book of Aron by Jim Shepard (2015) is a fictional work that features Dr Korczak and his orphanage in the Warsaw Ghetto as main characters in the book.

The Good Doctor of Warsaw by Elisabeth Gifford (2018), a novel based on a true story of a young couple who survived the Warsaw ghetto and of Dr Korczak and his orphanage.

Stage plays:
Dr Korczak and the Children by Erwin Sylvanus (1957)
Korczak's Children by Jeffrey Hatcher (2003)
Dr Korczak's Example by David Greig (2001)
The Children's Republic A play based on the life and work of Yanusz Korczak (2008) by Elena Khalitov, Harmony Theatre Company and School
The Children's Republic by Hannah Moscovitch (2009)
"Loving Every Child: Wisdom for Parents" Edited by [Sandra Joseph] korczak.org.uk
"Chlodnagaden nr.
33" By Rober Parr with music by Michael Ramløse, Teatret Fair play (Eng: The Fair Play Theater)
"Monsieur Fugue" (1967) by Liliane Atlan is based in part on the story of Korczak
Musicals:
Facing the wall - Janusz Korczak by Klaus-Peter Rex and Daniel Hoffmann (1997) presented by Music-theatre fuenf brote und zwei fische, Wülfrath
Korczak  by Nick Stimson and Chris Williams (2011) presented by Youth Music Theatre UK at the Rose Theatre, Kingston in August 2011.

Film:
Sie sind frei, Dr. Korczak (The Martyr), written by Ben Barzman and Alexander Ramati, directed by Aleksander Ford (1975)
Korczak, written by Agnieszka Holland, directed by Andrzej Wajda (1990) portrayed by Wojciech Pszoniak
Uprising (2001) directed by Jon Avnet, written by Avnet and Paul Brickman.
Palle Granditsky portrayed Korczak.

The Zookeeper's Wife (2017), directed by Niki Caro.
Arnošt Goldflam played Korczak.

Television:
Studio 4: Dr Korczak and the Children - BBC adaptation of Sylvanus's play, written and directed by Rudolph Cartier (13 March 1962)
Music:
Korczak's Orphans – opera, music by Adam Silverman, libretto by Susan Gubernat (2003)
Kaddish – long poem/song by Alexander Galich (1970)
King Mattias I - opera, music by Viggo Edén, from writings by Korczak, given World Premiere at Höör's Summer Opera (Sweden) on 9 August 2012.

'The Little Review' from album 'Where the Darkness Goes', Awna Teixeira, 2012
Janusz - piece for piano, music by Nicola Gelo (2013)
Astronomy:
Asteroid 2163 Korczak is named in his honour.
In addition to theater, opera, TV, and film adaptations of his works, such as King Matt the First and Kaytek the Wizard, there have been a number of works about Korczak, inspired by him, or featuring him as a character.
Books:
Milkweed by Jerry Spinelli (2003) – Doctor Korczak runs an orphanage in Warsaw where the main character often visits him
Moshe en Reizele (Mosje and Reizele) by Karlijn Stoffels (2004) – Mosje is sent to live in Korczak's orphanage, where he falls in love with Reizele. Set in the period 1939-1942. Original Dutch, German translation available. No English version as of 2009.
Once by Morris Gleitzman (2005), partly inspired by Korczak, featuring a character modelled after him
Kindling by Alberto Valis (Felici Editori, 2011), Italian thriller novel. The life of Korczak through the voice of a Warsaw ghetto's orphan. As of 2019, no English translation.
The Time Tunnel: Kingdom of the Children by Galila Ron-Feder Amit (2007) is an Israeli children's book in the Time Tunnel series that takes place in Korczak's orphanage.
The Book of Aron by Jim Shepard (2015) is a fictional work that features Dr Korczak and his orphanage in the Warsaw Ghetto as main characters in the book.
The Good Doctor of Warsaw by Elisabeth Gifford (2018), a novel based on a true story of a young couple who survived the Warsaw ghetto and of Dr Korczak and his orphanage.
Stage plays:
Dr Korczak and the Children by Erwin Sylvanus (1957)
Korczak's Children by Jeffrey Hatcher (2003)
Dr Korczak's Example by David Greig (2001)
The Children's Republic A play based on the life and work of Yanusz Korczak (2008) by Elena Khalitov, Harmony Theatre Company and School
The Children's Republic by Hannah Moscovitch (2009)
"Loving Every Child: Wisdom for Parents" Edited by [Sandra Joseph] korczak.org.uk
"Chlodnagaden nr. 33" By Rober Parr with music by Michael Ramløse, Teatret Fair play (Eng: The Fair Play Theater)
"Monsieur Fugue" (1967) by Liliane Atlan is based in part on the story of Korczak
Musicals:
Facing the wall - Janusz Korczak by Klaus-Peter Rex and Daniel Hoffmann (1997) presented by Music-theatre fuenf brote und zwei fische, Wülfrath
Korczak  by Nick Stimson and Chris Williams (2011) presented by Youth Music Theatre UK at the Rose Theatre, Kingston in August 2011.
Film:
Sie sind frei, Dr. Korczak (The Martyr), written by Ben Barzman and Alexander Ramati, directed by Aleksander Ford (1975)
Korczak, written by Agnieszka Holland, directed by Andrzej Wajda (1990) portrayed by Wojciech Pszoniak
Uprising (2001) directed by Jon Avnet, written by Avnet and Paul Brickman. Palle Granditsky portrayed Korczak.
The Zookeeper's Wife (2017), directed by Niki Caro. Arnošt Goldflam played Korczak.
Television:
Studio 4: Dr Korczak and the Children - BBC adaptation of Sylvanus's play, written and directed by Rudolph Cartier (13 March 1962)
Music:
Korczak's Orphans – opera, music by Adam Silverman, libretto by Susan Gubernat (2003)
Kaddish – long poem/song by Alexander Galich (1970)
King Mattias I - opera, music by Viggo Edén, from writings by Korczak, given World Premiere at Höör's Summer Opera (Sweden) on 9 August 2012.
'The Little Review' from album 'Where the Darkness Goes', Awna Teixeira, 2012
Janusz - piece for piano, music by Nicola Gelo (2013)
Astronomy:
Asteroid 2163 Korczak is named in his honour.
Janusz Korczak