It can be overwhelming to navigate the formalities of addressing a couple in English. Fortunately, traditions are evolving, and there are no longer strict 'right' or 'wrong' rules. You can decide if the couple uses the same last name, a hyphenated surname, or different ones. Then, choose whether you want to use formal titles or just list their names. Don't forget to include the recipient's information and return address on the envelope.
Steps
Write a Formal Letter

Use "Mr." and "Mrs. [husband's full name]" for traditional forms of address. While social conventions are rapidly changing, referring to a couple by the husband's name remains the most traditional approach. For example:
- Mr. and Mrs. Robert Gaiman
- Mr. and Ms. John Steele
- Mr. and Mrs. Bill Oster

Feel free to use the couple's titles and last names. If you don't wish to write the couple's full names, just use their titles and last names. For example: Mr. and Ms. Gaiman or Mr. and Mrs. Cameron.
- This is a good option if you're writing multiple letters and want to save some time.

Write the formal title followed by the person's name (if possible). If either or both of the spouses are in the military, hold advanced degrees, or are clergy members, write their titles along with their first or last names.
- Example: Dr. Matt Rivers and Dr. Megan Merritt. If one of them is clergy, you could write: “The Reverend and Mrs. Jordan”. If they serve in the military, you might write: “Lieutenant Beth March and Mr. Greg Wharton”.

Include the name if you're writing the last name with a hyphen. If either spouse's married name includes a hyphen, you can list each individual's title and name. Alternatively, you can write the full name after marriage if there's no hyphen.
- Example: Mr. Matthew Vargas and Ms. Sofia Townsend-Vargas.
Write an Informal Letter

List the couple's names for informal letter writing. To keep the tone casual and friendly, you can skip the titles and just write the couple's first and last names. The order can be random or alphabetical.
- Example: Adam and Ruben Martinez or Olivia and Jackson Montgomery.

Write the couple's name followed by "and Family" for a general envelope. If you're sending a letter to a couple and their family, list the couple's names with either their shared last name or their separate last names. Then, add "and Family" at the end.
- Example: Ava and Mark Lee and Family. If the couple has different last names, write: “Ava Tan, Mark Lee, and Family”.

Write the family surname if you don't want to list each person's name. A simple way to address an envelope to a couple and their family is to just write the family surname. For example, you can write: “The Lee Family” or “The Tan-Lee Family”.
- For formal envelopes containing multiple letters, you can list individual names on the separate envelopes inside.
Write the Address Information

Write the couple's name in the center of the envelope. Once you've decided on how to address the couple, write their names centered on the envelope. Make sure there's enough space to fit both names on one line.

Include the address below the names. On the line below the recipient's name, write the street address or P.O. box, city, state or province, and postal code. For example, your address may look like this:
- Mr. and Mrs. Riggs
2044 Willowbend Rd.
Columbia, MO 65201

Include a return address in the top left corner of the envelope. It's important to add a return address so that you can receive your mail back if it can't be delivered. Make sure to list your full name or surname in the top left corner of the envelope, and place your complete return address beneath your name. Your return address will look like this:
- Christine Ha
1254 Heather St.
Grand Lake, CO 80448
Advice
- If you're sending international mail, make sure to write the country name on the line below the postal code.
- If you're writing to several couples at once, it's best to choose a consistent salutation.
- When sending mail to an engaged couple, list their names alphabetically.
