Wilma Landkroon (born 28 April 1957, Enschede) is a Dutch pop singer.

At eleven years old, her first top chart success in the Netherlands and Germany was in 1968 the song “Heintje, bau ein Schloss für mich”.

Her biggest hit was the 1968 song Heintje, bau ein Schloss für mich, which gained notoriety in the Netherlands and Germany.

When Klaus Lorenzen became new producer of the young singer, she started to record songs in different languages (including English and Japanese), and had international chart successes (“Tulips from Amsterdam”; “Lavender blue”).

In the song “Gouden platen – volle zalen” (Golden Records – Full Halls) she gives a melancholy review on her life as one of the most successful child stars of all time.