Aldi is among the retailers fined by Germany's competition authority over price fixing.
The discounter is one of seven food retailers and four producers which have been fined €151.6m (£108.9m) over price fixing on "some products".
Andreas Mundt, the president of Germany's cartel office, said retailers "should generally not conclude agreements on shop prices to the detriment of end consumers".
"Manufacturers should not pressurize retailers or give them monetary incentives to maintain certain retail prices. Due to the large number of companies and business relations we had to examine in this case we focused on specific product categories and practices in our investigations."
Among the other brands punished were the Metro supermarket chain, pet food company Fressnapf, and retailers Kaufland, Rewe, Edeka and Das Futterhaus.
Aldi's appearance along with Lidl on the supermarket scene in the UK has sent British rivals into such a panic the ensuing price war contributed to the UK sinking into deflation last month. There is no suggestion the retailer has engaged in similar practices in the UK.
Aldi has been contacted for comment.