This is the second event that they're attending as a duo, the first being Wimbledon past year for the Women's final between Angelique Kerber and Serena Williams.
Duchesses Kate and Meghan watched from the royal box Saturday as Williams took on seventh-seed Simona Halep.
The former actress had on a white button-down shirt, paired with a long blue, black and white skirt.
Meghan was seated in the middle in the Royal Box, with Kate on her right and Pippa on her left.
But one of the tennis fans to get a talking to said he was just taking a snap of himself on his iPhone with Court One in the background.
She said: "I didn't know there was negative media out there".
The teenager explained the duchess also asked about the SW19 atmosphere and said her own children want to play tennis. This marks the second joint appearance for the sisters-in-law this week, when they attended a charity polo match together on Wednesday.
"She couldn't be a better friend to me".
The match was played on No. 1 Court, the second biggest stadium at the All England Club, and Snigur said the size of the venue made her "really scared" when she walked out.
Catherine will also attend the men's singles final alongside her husband Prince William on Sunday. The royals were on hand to watch the tennis legend chase her 24th Grand Slam title.
"She said it's my honour to have the opportunity to meet with you girls", Morlet added.
Also in the crowd at the final were "Beauty and the Beast" co-stars Josh Gad and Luke Evans, "Doctor Who" star Jodie Whittaker, Pharrell, Aidan Turner, Lily James, and British Prime Minister Teresa May.