Leonie Kooiker (20 October 1927 – 16 April 2020) was a Dutch children's writer.[1] She was born in Markelo, Netherlands. She published for the children's magazine Kris Kras. Her first book (Het malle ding van bobbistiek) [nl]), won her the Gouden Griffel. Her book Het Oerlanderboek won her the Vlag en Wimpel award.
Kooiker died in Papendrecht, Netherlands on 16 April 2020, aged 92.[2]