Johan Cornelius Krieger (1683–1755) was a Danish architect and landscape architect, who from the 1720s served as both the country's chief architect, and head of the royal gardens.
He oversaw the construction of Fredensborg Palace and its gardens, as well as Frydenlund Castle. He also designed or redeveloped the gardens of Frederiksberg Palace (now Frederiksberg Park), Clausholm Castle, Rosenborg Castle, Hirschholm Palace, and Odense Palace. Following the Copenhagen Fire of 1728, he was involved in the plan to reconstruct the city using brick-faced houses. In his gardening style, he was influenced by André Le Nôtre.