There was plenty to celebrate in George Stephanopoulos' household on June 2, as he and his wife, Ali Wentworth, marked their youngest daughter, Harper's 21st birthday.
The Ali's Well That Ends Well author, who also shares daughter, Elliott, 23, with the Good Morning America star, paid a sweet tribute to their "baby" in honor of her milestone birthday on Tuesday.
Ali posted several photos of Harper on her Instagram Stories, one of which featured the duo lying on top of a bed in matching white robes, which she captioned: "Happy Birthday to our baby!!!!! 21 years old!
A second image was of Harper wearing a patterned outfit while pulling a funny pose, which Ali captioned: "She's 21!!!!!" A final photo showed Harper cuddling the family dog in a pretty gingham dress, with the text, "Birthday Girl!" written across the top.
Last year, George took a moment out of his morning broadcast on GMA to give her a special shout-out.
He along with hosts Michael Strahan and Rebecca Jarvis, who was in for Robin Roberts, were reporting on Dancing with the Stars' 20th anniversary, when he quipped: "You just made me think of another anniversary. 20 years ago today Harper Stephanopoulos was born."
"She's not watching but happy birthday Harper!" he then added, as Rebecca and Michael followed suit with congratulations.
Harper is currently studying at Vanderbilt University in Nashville, Tennessee, and being the baby of the family made her move to college all the more difficult for her parents.
When she left in August 2023, Ali wrote on Instagram: "We dropped our baby off at college. Everyone is saying 'she's ready to launch'! But… I don't think I'm ready!
"I don't want to stop making pasta with vodka sauce, picking up wet towels, cuddling up to her familiar scent. As Joni Mitchell once wrote – 'the bed's too big, the frying pan too wide'."
She continued: "I know our daughter will thrive. But man, it's brutal on the parents. If you feel inclined – please send me baked goods. I'll be under my covers."
Harper's personality was revealed by her mom in a sweet tribute message just before she left home.
During her high school graduation, she wrote: "The baby daughter is launched! A perpetually optimistic, joyful, generous, empathetic, fun-loving, and wise human is spreading her wings! Bursting with love and pride! P.S. You know she is my daughter because she ran out after she graduated and got an ice cream cone across the street."
Meanwhile, their eldest daughter, Elliott, graduated from Brown University in May 2025, and George celebrated the milestone over on Instagram, sharing a photo of the college graduate with a cap and gown posing with her parents.
He wrote: "We have a college graduate!!! Congratulations to Elliott, and to the entire class of 2025. We love you and are so proud of you, E!"








