Kate began her visit by watching British player Harriet Dart on court 14 and sat between the past and future faces of British women's tennis.
She's due to watch British number one Johanna Konta play Romania's Ana Bogdan on Court 1.
Kate wore a classic white dress with black buttons, and belt, which she paired with matching large sunglasses, pumps and a handbag.
We've said it before and we'll say it again: Kate Middleton has a dress in her closet for almost any occasion. Her stylist Natasha Archer has been liaising with her throughout her maternity leave, and the duchess has also reportedly been seeking advice from former British Vogue fashion editor Virginia Chadwyck-Healy.
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For the time being, the Clippers , Lakers and Raptors should each still be considered in the running to sign the two-way star. And numerous quality role players the Lakers could have targeted by splitting up their cap space are already spoken for, too.
Kate, who is the patron of the Lawn Tennis Association, is regular fixture in the stands at the annual games, but never has her outfit looked so fitting for the sport. "She came and did lots of planting and directing everyone around and got involved in the mulching".
The pair were spotted laughing and cheering from the sidelines, as they watched the gripping match play out before them.
But, let's be honest, she always looks fabulous.
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. The Duchess told Monty Don in an interview for the BBC: "I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young children".
In previous years, the couple have been seen in the most exclusive seating area, the Royal Box, but a spot in the box is not guaranteed; even when your daughter is Kate Middleton.