Krystyna Boglar (17 December 1931 – 14 November 2019) was a Polish writer and screenwriter known mostly for her work for children and young adults. She wrote the script for the Gucio i Cezar comic book series illustrated by Bohdan Butenko which was adapted to the stage and TV.

Krystyna Boglar was born on 17 December^[1] 1931,^[1][2] in Kraków.^[2] In 1956, she graduated^[3] in Arabic^[4] from the Jagiellonian University, then worked at the Jagiellonian Library (1957–1960),^[3] before moving to Hungary for a couple of years to work in animated film production,^[1] collaborating, among others, with the Hungarofilm company.^[3] After returning to Poland in 1965, she worked at the Ministry of Culture,^[3] then for the Nasza Księgarnia publishing house.^[1] She also worked for the Polish branch of the International Board on Books for Young People.^[1] Boglar died on 14 November 2019.^[1] She is interred in Oświęcim.^[5]

Boglar wrote several dozen books for children and young adults.^[1] She debuted in 1966, writing for children's and young adults' magazines.^[1] In the late 1960s she started writing scripts for a comic book series Gucio i Cezar, which was illustrated by Bohdan Butenko.^[1] The series was adapted to the stage^[6] and TV as an animated series (1976–1977) for which Boglar wrote the script.^[7] In 2011, Poczta Polska released post stamps showcasing the main characters of the comic book.^[8]

Together with director Janusz Łęski, Boglar cowrote a script for a TV series based on two of her novels: Nie głaskać kota pod włos and Każdy pies ma dwa końce.^[1] Apart from writing for younger audiences, she also wrote novels for adults, such as Uśmiech czarnej wdowy or Tango na bananowej skórce.^[1] In 1981, she received the Prime Minister of Poland's award.^[3]

The English translation of her children's novel Clementine Loves Red created by Zosia Krasodomska-Jones and Antonia Lloyd-Jones was shortlisted for the 2017 Warwick Prize for Women in Translation.^[9]