Changing Your Name After Getting Married in Colorado

Short answer: yes, and it’s simpler than Colorado’s general name-change process, but it only covers a specific set of options, and what happens next depends on whether you’re the partner with a US Social Security number.

The name change happens on the license, before the wedding

Colorado lets you elect a new name straight through the marriage license application. A certified marriage certificate is enough on its own to act on that new name afterward. No court petition required, unlike Colorado’s general legal name-change process for anything unrelated to the marriage.

The catch: this route only covers a handful of options, not any new name you want. Based on how Colorado county clerks generally administer it, you can:

• Take your spouse’s last name.
• Hyphenate or combine both spouses’ last names.
• Move your current last name into your middle name slot, keeping your original middle name first.

It doesn’t cover an entirely unrelated new surname, and it doesn’t cover a first-name change either way; both still need Colorado’s separate court process.

The options above are drawn from published county guidance (Arapahoe County’s among them), not a single statewide list we’ve independently confirmed applies identically everywhere. Ask your specific county clerk what’s actually on their application form before assuming a less common combination is available.

You declare this on the application, before your ceremony, not afterward. See how to fill in the license application for the rest of that form.

The certificate isn’t ready until after recording

Here’s where timing trips people up: your new name isn’t usable anywhere until you have the certified copy of your marriage certificate, and that copy doesn’t exist until the signed license has been returned to the county clerk and recorded. Colorado gives you up to 63 days after the ceremony to return the signed license, but that’s the outer deadline for your side of it, not how long recording itself takes. Return it promptly and the certificate can be ready well before that window closes. See when are we officially married for the distinction between the marriage itself and this recording step, and the apostille process for turning that certified copy into something you can use abroad.

Don’t try to update any ID before you have the certified certificate in hand. Booking a DMV appointment or applying for a new passport before that document exists just means getting turned away.

If you have a US Social Security number

This path is realistically only relevant to a US-citizen or US-resident spouse. If you don’t have a Social Security number, skip to the next section.

The order most Colorado county guidance points to is: Social Security first, then DMV, then passport.

• Social Security: Colorado is one of the states where the Social Security Administration lets you change your name online, using your marriage certificate, an existing Colorado driver’s license or state ID, and a my Social Security account. No office visit required. SSA guidance recommends waiting at least 30 days after your marriage date before requesting the update, so state records have time to catch up.
• Colorado DMV: update your driver’s license or state ID once your Social Security record shows the new name. The DMV can update your last name from a certified marriage certificate, but it can’t change a first name without a court order, and it expects your name to match your Social Security record.
• US passport: apply for the name change afterward through the standard State Department renewal or update process.

Three separate agencies, three sets of paperwork, and skipping the order just means redoing a step later.

If you don’t have a US Social Security number

For most international readers of this site, none of the SSA/DMV/US-passport chain above applies. If you weren’t issued a Social Security number (the same situation covered in what documents you’ll actually need, where a notarized affidavit stands in for one on the license application), there’s no US Social Security record to update in the first place.

Your name change is instead a question for your own country’s passport authority and civil registry, using your apostilled Colorado marriage certificate as proof. What that process requires, translation, local registration, or neither, varies entirely by country. See does it matter what country we’re from and document translation requirements for that side of it, and check with your own country’s consulate or passport office directly for the specifics of a post-marriage name change.

The takeaway

Declare your new name on the license application before the ceremony. It’s limited to spouse’s-surname-style changes, not any new name. Wait for the certified (and, if you need it abroad, apostilled) certificate before you act on it anywhere. After that, the SSA-then-DMV-then-passport sequence only matters if you hold US documents to begin with. Otherwise, this becomes one more thing to fold into your own country’s recognition process, alongside everything else in bringing it home.