‘Hippodrome’ is French for racecourse.
Bonnevoie had horse racecourses. Races were announced at the ‘champ de course à Bonnevoie’ in 1896; a second track was laid out on Kaltreis in 1897, and a third was built in 1921 on the road to Hesperange, behind the Villa Berchem. The stop is named after the Rue de l’Hippodrome, in Luxembourgish ‘Rennbunnstrooss’.