Robert van der Kroft (born Haarlem, 1 April 1952) is a Dutch cartoonist, musician and disc jockey. He has been drawing the longstanding Sjors & Sjimmie comic strip since 1977, and since 1988. Beside his work for other comics and commercial work, he co-founded the Dutch comics magazines in 1975 and in 1994. More recently he has been promoting the in Rotterdam since 2016.