Who Is Kroy “kj” Biermann Jr.? What To Know About His Parents And Siblings

If you’ve scrolled past the name Kroy “KJ” Biermann Jr. and wondered who he is, you’re not alone. He’s not a new influencer or a viral TikTok star—at least not yet. KJ is actually the eldest son of Kroy Biermann Sr., the former NFL linebacker, and Kim Zolciak-Biermann, the reality TV icon from The Real Housewives of Atlanta and Don’t Be Tardy.

Born in 2011, KJ is the first child of the blended Biermann-Zolciak clan, and he’s grown up on-screen almost from day one. If you’ve followed Kim’s journey, you’ve watched him go from a chubby-cheeked toddler to a tall, athletic teenager who looks exactly like his dad. The family calls him “KJ” to avoid confusion with his father, and honestly, it’s a smart move—because Kroy Sr. is still a household name in Atlanta sports.

So who are his parents, really? Let’s break it down. Kroy Biermann Sr. played defensive end for the Atlanta Falcons from 2008 to 2015, and his NFL career was solid if not superstar-level—but his marriage to Kim Zolciak made him a reality TV staple. Kim Zolciak-Biermann, meanwhile, rose to fame with her iconic single “Tardy for the Party” and her dramatic, wig-heavy seasons on RHOA. Together, they’ve been a power couple in the Bravo universe for over a decade.

As for siblings, KJ has six—yes, six. He has two full siblings: Kash (born 2012) and Kane (born 2013), plus half-sisters Brielle (born 1997) and Ariana (born 2001) from Kim’s previous relationship, and older half-siblings from Kroy Sr.’s side. In 2020, Kim and Kroy also adopted two more kids, but the family dynamic remains tightly knit, with KJ often acting as the responsible big brother during their chaotic filmed vacations.

The Reality of Growing Up on TV

KJ’s life isn’t exactly private—he’s been featured on Don’t Be Tardy and various spin-offs since he could talk. But unlike many child stars, he seems to have a balanced head on his shoulders. Kim has shared that KJ is more reserved than his siblings, preferring sports and video games over the limelight.

He’s also inherited his dad’s athletic genes. At 13, KJ is already showing promise in football, though his parents insist school comes first. Fun fact: The Biermann household is so sporty that Kim once joked their living room doubles as a mini gym—trampoline included.

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If you’re curious about how they manage six kids, the secret is organization—and a lot of takeout. Kim has admitted that meal prep is a myth in their home, and that smoothies and protein bars are the go-to for busy mornings.

Practical Tip: Keep It Simple Like the Biermanns

Don’t stress about perfect home-cooked meals every night. Steal a page from Kim’s book: batch-cook grains and proteins on Sundays, then mix and match during the week. It’s realistic, saves time, and leaves room for spontaneous pizza nights.

Also, embrace the chaos. The Biermanns have mastered the art of “controlled messy”—when you have six kids, letting go of perfection is survival. Same goes for your social life: don’t aim for a Pinterest-perfect house; aim for a home that feels alive.

Kroy Jagger Biermann Jr. - Kroy Biermann's Son With Kim Zolciak

Cultural References You’ll Recognize

Remember the “wig shift” moment from RHOA? That was pure Kim energy, and KJ has inherited his mom’s dramatic flair—but only when he wants to. He once reenacted a scene from The Office for a family TikTok, and the internet loved it.

He’s also the kind of kid who listens to Drake and 21 Savage but will still binge-watch SpongeBob with his younger brother. The duality of a Gen Alpha teen is real.

On a deeper note, growing up in a blended family has taught KJ resilience—a skill that’s essential for anyone navigating modern life. Whether it’s dealing with half-siblings or public scrutiny, he’s learning early that flexibility is key.

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Another Fun Fact: The “K” Tradition

Yes, the “K” names are intentional. Kim and Kroy have a tradition of starting all their kids’ names with the letter K—KJ, Kash, Kane, and so on. It’s a cute branding move, though Kim has joked that she sometimes calls the wrong name at dinner.

If you’re naming your own kids, don’t feel pressured to stick to a theme. But if you do, just know that color-coded storage bins will save your sanity.

What’s Next for KJ?

As of 2025, KJ is entering high school and focusing on football and academics. He’s not on social media publicly, but he occasionally pops up on his parents’ Instagram stories—usually covered in sweat after practice.

Kroy Biermann déclare que la famille est « démunie » et sera bientôt

The Biermanns are also rumored to be starring in a new family docuseries, so we might see more of KJ’s quiet leadership. He’s the calm in the storm of wig-snatching and football huddles.

And here’s a final thought: while it’s easy to envy their luxury lifestyle, the truth is that every family—famous or not—has its own balancing act. KJ’s life reminds us that grounding comes from the small things: shared meals, inside jokes, and a sibling who knows your weak spots.

So next time you’re feeling overwhelmed by your own clan’s chaos, channel Kim’s mantra: “It’s a lot, but it’s ours.” Whether you have one kid or six, the goal is the same—love them through the mess.

And if you need a break, throw on The Real Housewives and thank the universe your life isn’t filmed. Trust me, that’s a cheat code we all need.