Joined by Katie Boulter and Anne Keothavong, Kate watched the match between Harriet Dart and Christina Mchale.
We've said it before and we'll say it again: Kate Middleton has a dress in her closet for almost any occasion.
The Duchess, a self-confessed fan of tennis, is a regular at Wimbledon.
The Duchess Duchess of Cambridge attends day two of Wimbledon 2019 in London, England.
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Kate also met Britain's top female player Johanna Konta before watching her play on number one court, a match she won.
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The custom-designed Suzannah dress, which featured black buttons and a bow on the lapel, was cinched with a bow belt from Alexander McQueen, which the 37-year-old has previously worn.
The Duchess of Cambridge has wowed crowds at Wimbledon where she made an appearance at day two to sit courtside with British player Katie Boulter.
The summer sun shone on Hampton Court Palace on Monday as the Duchess of Cambridge visited her Back to Nature Garden, now part of the Hampton Court Flower Festival, along with some special guests. While Kate opted for a black and white printed dress.
While we all might not be going to Wimbledon, this outfit would be ideal for a big summertime occasion, or even as a day-after-the-wedding bridal outfit. She complemented her outfit with pretty gold fern Catherine Zoraida earrings and completed her look.
The Duchess of Cambridge chats with Scottish tennis champion Andy Murray.
However, it seems Meghan won't be attending the event this year as she's on maternity leave following the birth of her son Archie just eight weeks ago.