The Rotterdam Marathon, currently branded ABN AMRO Rotterdam Marathon, is an annual marathon that has been held in Rotterdam, the Netherlands since 1981. It has been held in April of every year since the third edition in 1984, and attracts many top athletes. It has also been ranked as one of the top 10 marathons in the world by Runner's World magazine. The event is the most popular marathon in the Netherlands, followed by the marathons of Amsterdam and Eindhoven.