The haul was announced just hours before the Italian and Spanish champions go head to head for European football's biggest prize in Cardiff.
Four men have been charged with selling counterfeit goods, receiving stolen goods and fraud following the dismantling of the operation.
The fake items, produced near Juventus's Turin base, would have had an estimated sale value of around 2.5 million euros, half what officially licensed merchandise would retail for, police said in a statement.