Josh Allen and Hailee Steinfeld announced the arrival of their baby girl on April 2, 2026, sharing a heartfelt message in a Substack post. In June 2026, Steinfeld later revealed her daughter’s name—Harper Haize Allen—via her “Beau Society” newsletter.
Josh Allen and Hailee Steinfeld didn’t just announce a pregnancy—they ushered fans into the moment their baby girl arrived.
On April 2. 2026. the couple shared the news in a Substack post titled “Special Delivery.” In it. they wrote. “Our baby girl has arrived!!” and added that they were “feeling incredibly grateful and blessed and savouring these early moments. ” thanking fans for their love and well wishes. “Love, Hailee and Josh.”.
The timing made it feel immediate: one day they were parents-to-be, and the next they were celebrating the first days of their daughter’s life. Fans who’d been watching closely now wanted the next detail—when exactly the baby was born, and what they would call her.
The answer to the name came later. In a June 2026 “Beau Society” newsletter, Hailee Steinfeld revealed her daughter’s name as Harper Haize Allen.
“Dearest Harper, I’m in awe of you,” the new mom wrote. “You’ve been here for only a short while now, and somehow it feels as though you’ve always been ours.”
Before the name was confirmed, Steinfeld had appeared to gesture toward it through earlier “Beau Society” newsletter posts. In a 2025 roundup newsletter. she shared an image of a baby onesie with “Baby Beau” embroidered on it—an echo that many fans read as a hint of the moniker that later became official.
Even as the couple keep their private world largely under wraps, Josh Allen has spoken about the path toward fatherhood. During a January 2026 press conference, he acknowledged that planning parenting long in advance isn’t really how it works. “I’ve got siblings that have kids, and I’ve got a lot of friends who have kids. I don’t know if you can plan too far in advance,” he said. “I’m very much looking forward to that with my wife of becoming a dad. It’s something that I will take with great pride. and we’re going to have to figure out things on the go just like anything else.”.
That “on the go” idea now reads differently in hindsight, especially given how quickly the couple shared their daughter’s arrival and then—weeks later—returned to share her name and a message directly to her.
Where things stand for now is simple but still unanswered: the couple announced the birth on April 2, 2026, but it remains unclear when Hailee Steinfeld went into labor.
Josh Allen Hailee Steinfeld baby girl Harper Haize Allen Substack Special Delivery Beau Society newsletter Buffalo Bills