The Vel' d'Hiv Roundup (French: Rafle du Vélodrome d'Hiver, commonly called the Rafle du Vel' d'Hiv: "Vel' d'Hiv Police Roundup / Raid") was a Nazi directed raid and mass arrest of Jews in Paris by the French police, code named Opération Vent printanier ("Operation Spring Breeze"), on 16 and 17 July 1942. The name "Vel' d'Hiv Roundup" is derived from the nickname of the Vélodrome d'Hiver ("Winter Velodrome"), a bicycle velodrome and stadium where a majority of the victims were temporarily confined. The roundup was one of several aimed at eradicating the Jewish population in France, both in the occupied zone and in the free zone. According to records of the Préfecture de Police, 13,152 Jews were arrested, including more than 4,000 children. They were held at the Vélodrome d'Hiver in extremely crowded conditions, almost without water, food and no sanitary facilities, as well as at the Drancy, Pithiviers, and Beaune-la-Rolande internment camps, then shipped in rail cattle cars to Auschwitz for their mass murder. French President Jacques Chirac apologized in 1995 for the complicit role that French policemen and civil servants served in the raid.
The Vélodrome d'Hiver was an indoor velodrome (cycle track) at the corner of boulevard de Grenelle and rue Nélaton in the 15th arrondissement of Paris, not far from the Eiffel Tower. It was built by Henri Desgrange, editor of L'Auto, who later organised the Tour de France, when his original track in the nearby Salle des Machines was listed for demolition in 1909 to improve the view of the Eiffel Tower. As well as track cycling, the new building was used for ice hockey, wrestling, boxing, roller-skating, circuses, spectacles and demonstrations. In the 1924 Summer Olympics, several events were held there, including foil fencing, boxing, cycling (track), weightlifting, and wrestling.