__.__.1913
foundation as Red Star Namur
16.05.1921
merger with Union Sportive Jamboise to Namur Sports
01.07.1941
merger (inofficial) with Wallonia Association Namur to Union Royale Namur
01.07.1989
merger with Royale Entente Sportive Jamboise to Royal FC Namur
30.01.1993
renaming in Societe Royale Namur Sports
01.07.1996
renaming in Union Royale Namur
01.07.2002
integration of Racing Wallonia Saint-Servais
01.07.2018
merging with Racing Football Club Fosses to Union Namur Fosses-la-Ville
01.07.2019
merging with Etoile Rouge Belgrade to Union Namur Fosses-la-Ville
01.07.2021
renaming in Union Namur