Conor McGregor’s 4 Children: Get to Know Conor Jr., Croía, Rían, and Mack
- Celebrity
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- UPDATED MAY 10, 2025
by Kristine Bowman
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Conor McGregor may be best known for his accomplishments in the MMA world, but outside the ring, he’s a devoted father to four children. Alongside his longtime fiancée Dee Devlin, the UFC star has embraced fatherhood with pride and love. The couple welcomed their first child, Conor Jr., in 2017, followed by daughter Croía in 2019. Their family grew again with the births of sons Rían in 2021 and Mack in 2023.
Reflecting on becoming a father for the first time, McGregor told RTÉ’s The Late Late Show, “I’m very proud and very blessed every day because the birth of my son has made me softer where I need to soften up. I’m overcome with joy and love. I never thought I would be that way.
Conor Jack McGregor Jr., 8
Born on May 6, 2017, Conor Jr. was the first child for McGregor and Devlin. The proud dad announced the news with a heartfelt Instagram post featuring Dee and their newborn, writing, “Dee and Junior are doing great everyone! Thank you for all the kind words, I am one proud and blessed Daddy.”
From the start, McGregor involved his son in his public life, bringing him to media events for his 2017 bout with Floyd Mayweather. He’s also shared plans to get his son into sports, saying, “I’ve already begun training him… I want to show him my career, the crazy things I’ve done, and mostly show him that hard work pays off.
Croía Mairéad McGregor, 6
Croía was born on January 3, 2019. After her arrival, McGregor posted, “Heading home with my two healthy babies and an energized and healthy SuperMam.” Devlin had previously confirmed the pregnancy in a sweet birthday message to McGregor, referring to “me, Conor Jr., and the bump.”
Croía shares a special bond with her dad. In April 2023, McGregor shared a series of photos from a dinner outing with his daughter, captioning it, “Taking my real life Princess Croía to dinner.” For her fifth birthday in January 2024, the family threw a mermaid-themed celebration, with McGregor writing, “Happy birthday my Croía, daddy loves you so much.
Rían McGregor, 3
McGregor and Devlin’s third child, Rían, was born on May 17, 2021. McGregor had announced the pregnancy on Christmas Eve 2020 with a post featuring Conor Jr. holding an ultrasound photo, writing, “So much to look forward to in 2021.”
Rían’s birth was also announced on Instagram, with McGregor sharing, “The McGregor Clan is now a family of 5 … Healthy baby boy delivered! Baby and Mammy Wonder Woman are doing great!” While the couple has kept Rían more out of the spotlight, McGregor occasionally shares sweet moments, including a 2022 stroller photo captioned, “My big baby boy.
Mack McGregor, 1
The youngest member of the McGregor family, Mack, arrived on November 30, 2023. McGregor had revealed Devlin’s pregnancy a few months earlier during an appearance on Live with Kelly and Mark, saying, “There’s a lot going on.”
Following Mack’s birth, McGregor shared the joyful news online with a tribute to Devlin: “Another chunky healthy boy into the world. Dee, you are my hero.” Since then, he’s posted tender photos of himself cuddling their newest addition.
Who Is Conor McGregor’s Fiancée? Meet Dee Devlin
Dee Devlin has been by McGregor’s side since 2008. The pair met at a Dublin nightclub and quickly hit it off. After more than a decade together, McGregor proposed to Devlin on her 33rd birthday, August 9, 2020.
In addition to being parents of four, the couple are also professional partners—Devlin plays a key role in McGregor’s management and promotional efforts. “She’s supported me from the start,” McGregor told VIP Magazine in 2015. “She’d drive me to the gym, and she’d listen to all my dreams. Dee is a lifesaver for me. I wouldn’t be doing this if it wasn’t for her.
