Kate, 39, and Michael, 72, watched the men's wheelchair singles, as well as the men's singles final on Centre Court, where Novak Djokovic won against Matteo Berrettini. But did you spot the fun moment between the royal and her father?
The pair couldn't contain their giggles as they launched into a crowd wave on court three during Gordon Reid and Joachim Gerard's match. They were also joined by Scott Lloyd, CEO of the Lawn Tennis Association.
WATCH: Prince George hugs his parents after England's goal
They later headed off to Centre Court, where the Duchess and her father were spotted deep in conversation in the royal box throughout the men's singles final.
The Middleton family are avid tennis fans and are regulars at the tournament every year, with Michael attending with his wife Carole on Friday.
Michael and Kate joined in with the crowd wave
Kate couldn't contain her giggles
The Duchess presented trophies to the winners of both finals alongside the Duke of Kent, who has stepped down from his role as President of the All England Lawn Tennis Club (AELTC) after holding the position for more than 50 years. Kate has been patron of the AELTC since 2016.
After attending the men's singles final at Wimbledon, Kate joined William and her eldest son, Prince George, for the nail-biting Euro 2020 final between England and Italy. The Cambridges were spotted consoling their seven-year-old son after the Three Lions lost to Italy during a penalty shootout.
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