List of number-one albums of 2015 (Belgium)

This article documents the albums that reached the number-one position on the Belgian Albums Chart in 2015, as compiled by Ultratop. The Ultratop charts are separated into two distinct charts: one for albums in Flanders (the Flemish region) and one for albums in Wallonia (the French-speaking region). This list includes albums that topped the charts in either region.

The albums are listed chronologically by the date they reached the number-one position in each region. Each entry specifies the artist and album title, along with the number of weeks the album remained at the top of the chart. It's important to note that an album can reach number one in one region but not the other, or it can reach number one in both regions at different times. This list reflects both the Flemish and Wallonian Ultratop charts separately to provide a comprehensive overview of album popularity in Belgium during 2015.