Hailee Steinfeld reveals baby daughter’s name in heartfelt letter

Hailee Steinfeld revealed the name of her baby daughter in a heartfelt letter reflecting on motherhood and family life.

The actress and singer shared the emotional message through her Beau Society Substack, addressing her infant daughter by name for the first time as Harper Haize Allen.

Steinfeld and husband Josh Allen welcomed their first child together in April after announcing their pregnancy in December 2025, months after their wedding in Santa Barbara, California.

“You've been here for only a short while now, and somehow it feels as though you've always been ours,” Steinfeld wrote to her daughter.

“There are moments ... I still look at you and wonder how you're real. These last few months have been beautiful and exhausting. Sacred and so special. The longest days and the shortest season all at once.”

Hailee Steinfeld reflects on becoming a mother

The 29-year-old said becoming a mother has changed her life in ways she never fully anticipated.

She noted that while many people warn new parents that motherhood changes everything, few explain exactly how those changes unfold.

“It isn't always in the big moments,” she wrote. “Sometimes it's realizing that I no longer measure time in months or years, but in ounces, naps missed and naps miraculously taken, in diaper changes, and the quiet triumph of a successful transfer from my arms to your crib.”

Steinfeld also shared a glimpse into the bond she and Allen have developed with their daughter.

“Your daddy and I look at you often and ask each other the same question: How did we get so lucky to have you?” she wrote.

Actress cherishes daughter’s early months

The Oscar-nominated actress said she already finds herself nostalgic for moments that have only recently passed.

“Everyone tells me not to blink. Now I understand why,” she wrote.

“Because already, I miss versions of you that still feel like yesterday.”

Steinfeld reflected on watching her daughter grow, admitting she feels both emotional about leaving the newborn stage behind and excited for the future.

“I want your baby hair to stay this soft forever, but I long for the day you might ask me to braid it down your back while we're sitting in the grass,” she wrote.

“I could tear up at the thought of your tiny toes getting bigger, but I know that someday your big-girl feet will carry you through this big world.”

The actress concluded by describing motherhood as a collection of small but meaningful moments.

“I've learned that motherhood isn't made up of grand moments as much as the tiny, precious ones,” she wrote.

“The quiet realization, over and over again, that my heart is now somehow living outside of my body and it always will.”

Steinfeld recently shared that her main goal this summer is to be fully present with her daughter, saying she wants to savour every moment because “life moves fast anyway.”