The 42-year-old royal couldn't keep his eyes off his newborn daughter as she made her first public appearance outside a hospital in Copenhagen.
His wife Marie, 35, was glowing with happiness as she showed off the little girl to well-wishers.
Proud dad Joachim was present at the birth on Tuesday, and the new arrival tipped the scales at 6lb 5oz pounds.
The previous day, there were warm hugs, excitecement and the biggest of smiles as the Danish royals arrived to visit the newest member of the family.
Bearing gifts were Joachim's three boys – two year-old son Henrik, named after his paternal grandfather,and Nikolai and Felix, the prince's sons from his previous marriage to Alexandra, Countess of Frederiksborg.
Grandparents Queen Margrethe and Prince Henrik both enveloped their son in a warm hug.
Joachim's big brother Crown Prince Frederik – also a dad-of-four – came along with his wife Mary.