Košice-Sever (English: Košice-North, Hungarian: Kassa-Észak) is a borough (city ward) of Košice, Slovakia. Located in the Košice I district, it lies at an altitude of roughly 260 metres (850 ft) above sea level. It is one of the more populous boroughs of the city, as well as the largest of all 22 boroughs, which contributes to its low overall population density. Along with the neighbouring borough of Kavečany, Košice-Sever is the most popular recreational area in the city, frequented particularly by locals, but also visitors.