Meghan Trainor Kids’ Last Names: Surname Choices Explained

By Emily Chen · March 3, 2025

Why This Question Keeps Popping Up — And What It Really Reveals About Modern Parenting

What are Meghan Trainor’s kids last names is a question that surfaces repeatedly across Google Trends, Reddit parenting forums, and TikTok comment sections — not just out of celebrity gossip curiosity, but because it taps into a deeply personal, often stressful, real-life decision tens of thousands of new and expecting parents face each year: What surname do we give our child? Meghan Trainor and husband Daryl Sabara welcomed their first son, Riley, in February 2023, and their second son, Jagger, in August 2024. As of October 2024, both children legally bear the surname Sabara — not Trainor, not a hyphenated version, and not a double-barreled combination. But that simple answer barely scratches the surface. In today’s landscape — where 40% of U.S. births occur outside marriage (CDC, 2023), nearly 65% of married couples keep separate surnames professionally (Pew Research, 2022), and 28% of Gen Z parents intentionally choose non-traditional naming structures — the ‘last name’ question has evolved from formality to identity, equity, and legacy. This isn’t just about paperwork; it’s about modeling values, honoring lineage, navigating bureaucracy, and protecting your child’s sense of self before they can even spell their own name.

The Legal Reality: How Surname Assignment Actually Works in the U.S.

In all 50 states, a child’s legal surname is determined at birth registration — typically via the birth certificate — and requires agreement between both legal parents. While tradition once dictated automatic paternal naming, modern law grants equal agency: either parent may request their surname, a hyphenated version, a completely new name (with court approval in some states), or even a matrilineal-only option. Importantly, no federal law mandates paternal naming — yet societal inertia, outdated hospital forms, and unconscious bias still steer many providers toward defaulting to the father’s surname unless explicitly corrected.

According to Dr. Lena Chen, a family law attorney and co-author of Naming Rights: Identity, Equity, and the Law (2023), “The biggest misconception I hear in consultations is that ‘dad’s name is the default.’ That’s false — it’s a relic of common law, not current statute. What is true is that hospitals often lack training on equitable naming protocols, leading to rushed assumptions during emotionally charged postpartum moments.” Meghan and Daryl’s choice of Sabara reflects a deliberate, shared decision — not passive acceptance. And crucially, it’s fully revocable: under California Family Code § 7630, either parent may petition to change a minor’s surname post-birth with court approval — though courts prioritize the child’s best interests, not parental preference alone.

Why Meghan Chose Sabara — And What It Teaches Us About Intentional Parenting

Meghan Trainor has spoken openly about valuing partnership over hierarchy — from co-parenting responsibilities to financial transparency and domestic labor equity. In a 2024 interview with Parents Magazine, she clarified: “Daryl’s family has deep roots in acting and storytelling — his grandfather was a Golden Globe-nominated director. We wanted our boys to feel connected to that legacy, especially since my side is more musical and entrepreneurial. Plus, ‘Trainor-Sabara’ felt like a mouthful for a toddler learning to say their own name!”

This reveals three evidence-backed principles pediatric psychologists recommend for surname decisions:

Developmental appropriateness: Speech-language pathologists note that children under age 5 often struggle with multisyllabic or hyphenated surnames — impacting school registration, peer interactions, and self-identification (ASHA, 2021).
Family narrative cohesion: A 2023 longitudinal study in Journal of Marriage and Family found children with surnames reflecting intentional parental collaboration (not tradition or pressure) reported higher family belonging scores by age 10.
Future autonomy consideration: Child development specialist Dr. Amara Patel (AAP Fellow, Boston Children’s Hospital) advises, “Think ahead: Will this name serve them when applying to college, auditioning for roles, or building a professional brand? Avoid choices that unintentionally pigeonhole or complicate.”

For Meghan — a global pop star whose brand is inseparable from her name — preserving “Trainor” as her professional identity while giving her sons a distinct familial anchor makes strategic sense. It avoids confusion (“Is this Meghan Trainor’s kid or Meghan Trainor herself?”) and affirms Daryl’s role without erasing hers.

Your Surname Decision Toolkit: 5 Actionable Steps Backed by Experts

Don’t wait until you’re holding your newborn to decide. Start these conversations pre-conception or by week 20 of pregnancy — when emotions are calmer and logistics less urgent. Here’s how to move from uncertainty to clarity:

Map your lineages: Interview grandparents and document naming traditions — not to follow them blindly, but to understand what values they represent (e.g., “My grandmother kept her name after marriage to honor her immigrant mother who couldn’t speak English — it was about resilience, not rebellion”).
Run the ‘school test’: Say each option aloud: “This is [Child’s Name] [Surname]” — then imagine hearing it called at preschool pickup, seeing it on report cards, typing it into college applications. Does it flow? Is it easily spelled? Does it risk mispronunciation or teasing?
Check state-specific rules: Some states (like Louisiana) require court orders for non-paternal surnames; others (like Oregon) allow full flexibility on birth certificates. Use the National Center for State Courts’ free surname law lookup tool.
Consult your pediatrician: Yes — really. Many now offer ‘pre-birth planning sessions’ covering everything from car seat safety to naming. Dr. Sarah Kim, a pediatrician at UCSF Benioff Children’s Hospital, notes: “We’ve seen cases where mismatched surnames caused delays in vaccine records or ER access — especially if only one parent is present. Clarity upfront prevents real-world harm.”
Write it down — literally: Draft two versions of your child’s full legal name on paper. Sign it as if filing official documents. Does your hand hesitate? Does your gut tighten? That’s data — not superstition.

Real Families, Real Choices: What Other Parents Are Doing (and Why)

Let’s move beyond theory. Here’s how diverse families navigated this decision — with outcomes verified via public records, interviews, and anonymized case files from family law clinics:

Family Profile	Chosen Surname	Rationale	Key Outcome / Lesson
Same-sex couple (both female); one carried child via donor sperm	Hyphenated: [Mother A]-[Mother B]	Legal equality + visual representation of both parents on all documents	Required extra steps for passport processing (State Dept. flagged hyphen as ‘non-standard’); resolved after 3 weeks with certified copy of adoption decree.
Blended family: Mom (divorced, kept maiden name), stepdad raising 3 kids from prior marriage	All children retain biological father’s surname; stepdad legally adopted youngest child, who now uses stepdad’s surname	Respect for existing identity + clear legal distinction for custody/medical consent	Avoided confusion during school emergencies — nurses confirmed names matched insurance cards exactly.
First-generation immigrant mom + U.S.-born dad; both want child to honor heritage	Maternal surname as middle name; paternal surname as last name	Cultural bridge: “We call her [First] [Mom’s Surname] [Dad’s Surname] at home — so she grows up fluent in both identities.”	Teacher initially misfiled records under paternal surname only; fixed after mom provided bilingual birth certificate annotation.
Non-binary parent + cis partner; child conceived via IVF	Neologism: Created surname blending phonemes from both parents’ names (e.g., “Taylen” from Taylor + Lennox)	Rejection of gendered naming conventions + affirmation of chosen family	Required court petition in Texas; approved after genetic counselor testified to psychological benefit of name autonomy.

Frequently Asked Questions

Can Meghan Trainor change her kids’ last names later — and would they have a say?

Yes — but with significant legal thresholds. In California, a child aged 14+ must consent to a surname change (Family Code § 7630). For younger children, courts weigh factors like the child’s relationship with each parent, potential confusion or embarrassment, and whether the change serves the child’s best interests — not parental convenience. Meghan has stated publicly she views their names as settled, citing stability as key for young children.

Do Meghan and Daryl use different surnames professionally — and does that cause issues?

Yes — Meghan performs and publishes as “Meghan Trainor”; Daryl acts and directs as “Daryl Sabara.” They’ve reported zero professional friction, noting that industry databases (SAG-AFTRA, ASCAP) accommodate multiple legal names. Their children’s passports list “Sabara” as the legal surname, with “Trainor” noted as a former/alternate name — a standard practice per U.S. State Department guidelines.

If a child has Sabara as their last name, can they still use ‘Trainor’ as a stage name or brand later?

Absolutely — and this is increasingly common. Legal surname ≠ professional identity. Billie Eilish (O’Connell), Lorde (Lorde), and H.E.R. (Gibson) all use stage names distinct from birth surnames. Meghan’s sons could legally trademark “Trainor” or “Trainor-Sabara” as a brand at any age — no court petition required. Intellectual property attorneys confirm this poses no conflict with Meghan’s existing trademarks, as personal names aren’t automatically protected.

What happens if Meghan and Daryl divorce — would the kids’ last names change?

No — a surname assigned at birth remains legally valid post-divorce unless formally changed via court order. Custody agreements address decision-making authority, but surname changes require separate legal action. Per the American Bar Association’s Family Law Section, judges rarely approve post-divorce surname changes solely to ‘distance’ a child from a parent — unless evidence shows harm (e.g., safety concerns, documented estrangement).

Are there any tax, insurance, or school enrollment implications to choosing Sabara vs. Trainor?

None — as long as the name on the birth certificate matches Social Security records, health insurance cards, and school registration forms. The IRS, CMS (Medicare/Medicaid), and DOE all rely on SSN as the primary identifier, not surname. However, mismatched names across documents *do* trigger verification delays — which is why experts stress consistency across all legal paperwork from day one.

Common Myths About Surname Decisions — Debunked

Myth #1: “Using the mother’s surname hurts the child’s relationship with the father.”
Research from the University of Michigan’s Institute for Social Research (2022) tracking 1,200 children over 12 years found zero correlation between paternal surname usage and father-child bond strength. What *did* predict strong bonds was consistent involvement, shared routines, and emotional availability — not shared letters.

Myth #2: “Hyphenating guarantees both lineages will be preserved.”
In reality, hyphenated surnames often get shortened, dropped, or misspelled over generations — especially in digital systems with character limits (e.g., airline bookings, medical portals). A 2023 study in Demography showed 68% of adults with hyphenated childhood surnames used only one part professionally by age 30.

Final Thought: Your Child’s Name Is Their First Identity — Choose With Intention, Not Inertia

Meghan Trainor’s choice of Sabara isn’t about fame, compromise, or tradition — it’s a quiet act of profound intentionality. She and Daryl weighed legacy, linguistics, legality, and love, then chose a name that serves their sons’ futures, not their pasts. You don’t need celebrity resources to make an equally powerful decision. Start today: open your notes app, type “Our child’s full legal name will be…” and fill in the blank — not with what’s expected, but with what feels true. Then, book that pre-birth consult with your pediatrician or family lawyer. Because the most loving thing you’ll ever do for your child isn’t just giving them a name — it’s giving them a story worth telling.