Paul Lennart Hellsing (5 June 1919 – 25 November 2015) was a Swedish writer and translator. His lasting contribution as a children's writer, Helsing was a finalist in 2010 for the biennial, international Hans Christian Andersen Award, the highest recognition available to creators of children's books. He was born in Västanfors, Sweden. He was known for his rhymes and word plays. He was thought to be an "outstanding poet" in the field of humour and nonsense writing.
- "Lennart Hellsing". Nationalencyklopedin (in Swedish). Retrieved 29 December 2010.
- "Children's literature". Clifton Fadiman. Encyclopædia Britannica. Encyclopædia Britannica Online. Last updated 12 January 2014. Retrieved 21 March 2014. (subscription required)
- Hallhagen, Erika (25 November 2015). "Hellsing lämnade dörren till sagan på glänt". Svenska Dagbladet (in Swedish).