Kijfhoek classification yard is a hump yard type freight rail yard between Rotterdam and Dordrecht in the Western Netherlands. The rail yard is named after the nearby village of Kijfhoek in the municipality of Zwijndrecht. With an area of 50 hectares Kijfhoek is the largest of the few railway yards left in the country. The rail yard has a key function in connecting the rail network at the Port of Rotterdam with the rest of the Netherlands, Belgium and Germany.