This tradition comes from the history of formal invitations. Historically, formal wedding invitations and responses were written in the third person (e.g., "Mr. and Mrs. Smith request the pleasure of your company...").
The "M" was a formal, elegant way to prompt the guest to begin their response with their proper title, maintaining the consistent, refined tone of the invitation. It was a small detail that signaled the occasion was special and that formal etiquette was being observed.
Today, while many invitations are less formal than they once were, the "M" has remained a charming, traditional way to prompt guests to write their names properly.
What If You Don't Use a Traditional Title?
If you don't use a traditional title like Mr., Mrs., Ms., or Miss, you have a few options. You can:
Write your name without a title. Simply write your full name on the line (e.g., "Taylor Johnson").
Use the gender-neutral title "Mx." (pronounced "mix"). This is becoming increasingly common and is a respectful way to address someone who does not use a gendered title.
Write your professional title. For example, "Dr. Elizabeth Chen" or "Professor James O'Malley".
The most important thing is that you respond clearly and in a way that feels comfortable and authentic to you.
A Gentle Reminder
The "M" on an RSVP card is a small, thoughtful detail meant to make the invitation feel special and to help you respond in a way that fits the occasion. It's not a test of etiquette knowledge, just a lovely tradition from a time when these formalities were part of everyday life.
If you ever feel unsure, simply write your full name clearly. Your host will be grateful to know who is coming and how to address you.
