Alfred (Freddy) Marie Daniel Ghislain Joseph Vreven (24 March 1937 – 15 June 2000) was a Belgian liberal politician for the PVV.
He was the son of the former liberal minister Raoul Vreven.
Vreven was a notary and became a member of parliament (1970–1997) in the district Hasselt for the PVV.
From 1981 up to 1985 he was minister of defense.
During this time, he sanctioned a bad defensive position near the Alps.