In fact, it's so real that it has officially infiltrated one of the most exclusive circles in La La Land, aka Hollywood.
On Saturday, during the Ladies' Single Finals at Wimbledon, Emma Watson arrived in the stands wearing an outfit that seemingly mirrored the Duchess of Sussex's style, right down to the white culottes.
For the occasion, Markle sported a blue and white striped blouse, which she tucked into her white silk wide-leg pants by Ralph Lauren. Meanwhile, the Harry Potter star slipped on a nearly identical pair of the flowing trousers, but dressed them up with a tailored blazer and button-up vest in the same stark shade.
Watson's main accessory, a white straw hat, also reminds us of the beloved fedoras worn by Markle. She even had one on-hand during the games in case the sun became too bright.
However, Emma is not the only one taking style cues from the newly-minted royal. It seems as if the Meghan Markle effect has also reached those within her inner circle. Take, for instance, Kate Middleton's canary yellow Dolce & Gabbana sheath dress with flutter sleeves she wore to her second day at Wimbledon with her husband, Prince William. The style is very reminiscent of the sunny Brandon Maxwell number Markle wore only a few weeks ago.