Affligem Abbey is a Benedictine monastery in the municipality of Affligem, near Brussels, Belgium. It was founded in 1062 by six knights who repented of their violent way of life and became monks. Over many centuries the abbey's fortunes waxed and waned; it was destroyed several times by war, only to be rebuilt by the monks.
As at many European monasteries, beer was brewed throughout Affligem's history for the monks and as an expression of hospitality. Since 1956 the monastery has licensed its name and its traditional recipe "Formula Antiqua Renovata" to a commercial brewery as a means of support for the monks and their charities, which include a religious and cultural center.