Meghan opted for a casual look, wearing a pair of jeans, a black Lavender Hill top, a white striped L'Agence blazer and a pair of Finlay and Co sunglasses, completing her outfit with an "A" necklace in an apparent nod to her son.
The Duchess of Cambridge, known for being a keen tennis fan, made an appearance on the second day of the championship wearing a white button-up dress by British fashion label Suzannah and carrying an Alexander McQueen clutch.
The duchess is a royal patron of the All England Lawn Tennis and Croquet Club and The Lawn Tennis Association.
Other famous faces in attendance so far have included Phoebe Waller-Bridge, Mary Berry and Sam Claflin.
Click through the gallery above to see all the best-dressed celebrity guests at SW19.
To discover why tennis players participating in Wimbledon have to wear white, click here.
For all the latest news on this year's tournament, click here.