In a move away from the tradition and restrictions of previous royal weddings, the couple are reportedly not giving all their guests a plus one.
One half of a couple will be invited, while the other will be forced to watch the big day from their home.
However, the decision has reportedly been made due to the size of the wedding venue.
ITV’s Chris Ship tweeted: ‘Unlike most other weddings, Harry and Meghan are inviting only one half of couples. Seen an invite for a husband but not his wife.’
‘Sounds a bit tight, but I’m sure they’d claim space in limited in St George’s Chapel.’
And, in another unusual move, Meghan’s real name, Rachel, was also left off the wedding invites.
‘Buckingham Palace does things by the book, so they will list your full name,’ says British etiquette expert, Grant Harrold.
‘Even though it's an official occasion, they've obviously decided that she's known to as everybody as Meghan Markle and issued the invitations under that name.’
However, the Queen did use Meghan’s real name in her formal consent for the royal wedding.
The document confirmed the marriage between, ‘My Most Dearly Beloved Grandson Prince Henry Charles Albert David of Wales and Rachel Meghan Markle.’