Zbigniew Lengren (2 February 1919 in Tula – 1 October 2003 in Warsaw) was a Polishcartoonist, caricaturist, and illustrator, of Swedish descent. He was awarded the "Order of Smile" amongst other, numerous awards. His most famous creation is Professor Filutek, who appeared once a week on the last page of Przekrój magazine, together with his dog Filuś, for over 50 years, a record run in Polishcomics. Lengren was also a writer, especially of poems for children.
Monument to Filuś guarding his master's belongings at the Old Town Market in Toruń, Poland