Not only has she joined her husband Prince Harry for a whirlwind few days of appearances, she's pulled out stunning outfits for each one - debuting THREE new looks in the space of one day on Tuesday.
Prince William, Kate Middleton, Prince Harry, and the Duchess of Sussex helped celebrate the 100th anniversary of the Royal Air Force.
Commenting on Meghan's dress, celebrity stylist and designer Lucas Armitage (the-timeless.com) told MailOnline that Meghan had made a "bold choice" by choosing black.
We have to say, we think the new royal's minimalist look was strikingly similar to the famous black dress that Audrey Hepburn wore in her movie Sabrina.
This year marks the centenary of the Royal Air Force - the world's first independent air force - which was founded on 1 April 1918, independent of the British Army and Royal Navy.
As well as being Britain's top defense system in air, the RAF has prevented conflicts and delivered aid in areas hit by natural disasters over the last many decades.
Brian O'Driscoll and Amy Huberman, who attended Prince William's wedding to Kate Middleton in 2011, were among the guests at the garden party.
As part of their two-day visit, the duke and duchess will visit Croke Park, Ireland's largest sporting arena and the country's main Gaelic football stadium, as well as the Irish Emigration Museum, Trinity College Dublin and a small start-up called DogPatch Labs.
Harry and Meghan's engagements will include official meetings with Taoiseach Leo Varadkar and President Michael D Higgins.