Addressing wedding invitations is one of those tasks that seems simple until you sit down with your guest list. Suddenly you're wondering whether to write "Mr. and Mrs.," how to include a plus-one, and what to do about your aunt who is a doctor. The good news: once you know the conventions, it all falls into place.
This guide covers the etiquette for nearly every household on your list, so your envelopes arrive looking as thoughtful as the suite inside.
A beautifully addressed envelope sets the tone before the invitation is even opened.
Start With the Outer Envelope Basics
Formal wedding invitations traditionally use two envelopes: an outer envelope that carries the mailing address, and an inner envelope that names exactly who is invited. If your suite uses a single envelope, that one envelope does both jobs — so be specific about names.
A few rules that apply to nearly every envelope
- Write out full names — no nicknames or initials.
- Spell out street names, cities, and states: "Street," not "St."; "Texas," not "TX."
- Spell out numbers one through nine in street addresses.
- Use courtesy titles (Mr., Mrs., Ms., Dr.) for a formal tone.
Collect addresses in a spreadsheet with columns for names-as-written, street, city, state, and zip. Your stationer can work directly from it, and it keeps every household consistent.
Married Couples
For a married couple sharing a last name, the traditional format is:
- Mr. and Mrs. Thomas Nguyen
- Mr. Thomas and Mrs. Elena Nguyen (a slightly more modern option that includes both first names)
For couples with different last names, list each person fully on the same line if it fits, or on two lines:
- Ms. Rachel Alvarez and Mr. Daniel Kim
When in doubt, list the person you're closest to first — or go alphabetical. There is no wrong answer as long as both names appear in full.
Unmarried Couples Living Together
An unmarried couple at the same address receives one invitation, with each name on its own line:
- Ms. Lauren Brooks
Mr. James Carter
If the couple doesn't live together, etiquette says each person should receive their own invitation at their own address — though in practice, sending one to the partner you're closest with (naming both) is perfectly acceptable.
Single Guests and Plus Ones
Address the envelope to your guest alone, and use the inner envelope — or a line on the RSVP card — to indicate a plus-one:
- Outer: Ms. Olivia Bennett
- Inner: Ms. Bennett and Guest
If you know the name of their significant other, always use it. "Ms. Olivia Bennett and Mr. Ethan Shaw" feels far more personal than "and Guest."
Families with Children
To invite the whole family, you have two options:
- Outer: Mr. and Mrs. Michael Foster · Inner: Mr. and Mrs. Foster, Emma, and Jack
- Or simply: The Foster Family
Children eighteen and older should receive their own invitation, even if they live at home. If children are not invited, list only the adults' names on the envelope — the names on the envelope are the clearest signal of who is included.
Titles and Distinguished Guests
Professional titles are always used, and the person with the distinguished title is listed first regardless of gender:
- Dr. Sarah Whitfield and Mr. Andrew Whitfield
- The Honorable Maria Santos and Mr. Luis Santos (for judges and elected officials)
- Colonel James Reed and Mrs. Patricia Reed (military titles are spelled out)
If both partners hold titles, list both: "Drs. Sarah and Andrew Whitfield" or "Dr. Sarah Whitfield and Dr. Andrew Whitfield."
Don't Forget the Return and RSVP Envelopes
Your return address goes on the back flap of the outer envelope — names optional, but the address itself spelled out. For RSVP envelopes, pre-print the address (usually whoever is tracking responses) and consider pre-stamping them as a courtesy to your guests.
Before you mail
- Take one fully assembled suite to the post office to confirm postage — square and heavy suites often need more.
- Ask about hand-canceling to keep envelopes pristine.
- Order 10–15 extra envelopes for addressing mistakes and keepsakes.
When to Hand It to a Professional
Envelope addressing is one of the most time-consuming parts of the stationery process — and one of the most visible. Whether you choose hand calligraphy, elegant digital addressing in a matching typeface, or a combination of both, I can take this task entirely off your plate so every envelope arrives beautifully consistent.
If a tricky household didn't make this list, don't worry — part of working with a custom stationer is having someone who has seen every addressing scenario and can guide you through yours.