The 40-year-old actress looked stunning as she wore the red cape gown previously adorned by the Duchess of Sussex a year ago. The dress is designed by Safiyaa and costs $1620 (£900).
Ms Wilson wore the frock ahead of Super Bowl Sunday.
She stepped out in her Meghan inspired outfit for the NFL Honours on Saturday.
Taking to Instagram, Ms Wilson told her fans: “Loving myself SICK in this dress!”
Social media users praised the actress for her stunning outfit.
One Instagram user said: “The most beautiful person to walk this earth.”
Another user wrote: “Wow! Way to wear the dress versus the dress wearing you!!”
While a third said: “Stunning. Your transformation is so inspirational.”
According to reports, Ms Wilson lost nearly 60-pounds over 2020 in what she described as her “health year”.
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Kate Middleton and Prince William were said to have felt “awkward” by a joke Ms Wilson made at last year’s BAFTAs, according to royal commentators.
Royally Obsessed podcast hosts Roberta Fiorito and Rachel Bowie discussed the Duke and Duchess of Cambridge’s attendance at last year’s Royal Albert Hall ceremony.
Ms Wilson had said on stage: “It is really great to be here at the Royal Andrew, no, Royal Harry, no sorry, Royal Philip…Royal Palace place.”
The audience could be heard gasping and clapping in amazement after the actress told the joke.
Ms Bowie told listeners: “Whoa, brutal. Rebel Wilson taking the joke a little too far. They were definitely not laughing and were looking a little more awkward.
“There’s definitely a contrast between the Andrew and Harry references.
William loves Harry as a brother, but Andrew’s situation is much bigger.”
Ms Fiorito added: “It’s an actual royal scandal, it’s not just Harry leaving with his wife.
“So they were not feeling that one so very much. It’s just funny to see all the cutaway shots of them.”