Marjolein Algera (Netherlands, Leiden, 25 november 1965) is a Dutch voice actress. She provided the voice of Bart Simpson in The Simpsons Movie.
Outside of The Simpsons she is especially known for the role of Nini Sakurada in the Dutch version of the long running Japanese animated television series (Crayon) Shinchan.
In 1990 she completed a directors education.
In 2005 she received the Silver Cow award for her accomplishments in the Dutch dubbing.