Four children, one parent branch and a relationship label that changed in 2025

Conor McGregor’s 4 Children: Conor Jr., Croía, Rían and Mack

That final sentence is the important update older profiles miss: Dee is no longer McGregor’s fiancée. The four-child count has not changed, but the parents’ legal relationship has.

All four children are minors. This guide records the family chronology and the parents’ own public statements without turning occasional photographs, sports appearances or birthday posts into invented personalities and careers.

The review date matters because all four ages change during the year, while the family count and parent branch do not. Using a dated snapshot lets a reader reconcile older interviews without mistaking a normal birthday for a contradiction. It also keeps the children’s Irish names intact instead of treating accent marks, shortened captions or event photographs as separate evidence about who they are.

Conor McGregor’s children at a glance

The spellings Croía and Rían include Irish diacritics. Publications sometimes drop them, but that typographical shortcut does not create different children.

All four children share both parents. This is a simpler parent map than many celebrity families; the main reader risk is stale dates and a stale “fiancée” label, not a disputed branch.

Are Conor McGregor and Dee Devlin married?

Yes. McGregor and Devlin married on 12 December 2025 at the Church of Santo Stefano degli Abissini in Vatican City. Established MMA reporting documented the ceremony and all four children.

The couple began their relationship in 2008 and announced their engagement in 2020. Profiles written before December 2025 correctly used “fiancée” at the time; pages still using it now are out of date.

Their marriage does not change the children’s parentage or ages, but it matters in an article whose purpose is to explain the family accurately.

Conor Jr. and Croía

Conor Jack Jr. was born on 5 May 2017. McGregor spoke publicly about becoming softer and feeling “joy and love” after his first child arrived. Conor Jr. has appeared at fight events and in family sports posts, but a child’s participation is not a professional career.

Croía was born in January 2019. ESPN’s 2020 interview records McGregor naming his then-young daughter while describing how fatherhood influenced him. Her exact day is inconsistently reported, so the age is safer than overstating one secondary date.

Both children are school-age minors. Schools, training locations and unsourced personality labels are excluded.

Rían and Mack

Rían was born on 17 May 2021. The birth expanded the family to three children. In a June 2023 television appearance, McGregor described the then-current ages and announced that another baby was on the way.

Mack arrived in December 2023. His birth completed the current four-child family. Reputable 2025 marriage coverage names him alongside Conor Jr., Croía and Rían.

At two and five on the review date, these children need less biography, not more. Birthday themes and image captions are dated family moments; they do not establish enduring interests.

What changed after the old McGregor family profiles?

A current page should correct relationship status without rewriting the family as a wedding story. Readers came for the children’s names, ages and branches, so those remain first.

How does KidsCo handle McGregor’s wider public record?

A family guide should not operate as reputation laundering. McGregor has been the subject of serious civil findings and continuing legal and sporting coverage. Those matters are part of his public record and readers can consult the linked established reporting.

They are not biographical facts about Conor Jr., Croía, Rían or Mack. This page therefore acknowledges the context once, avoids graphic detail and does not make children evidence for or against claims about an adult parent.

What is verified and what remains private?

A source-led family guide can be current without becoming intrusive. The reliable answer is a four-child timeline and one shared parent branch.

McGregor–Devlin family timeline

Questions people ask about Conor McGregor’s children

How many children does Conor McGregor have?

Conor McGregor has four children with Dee Devlin: Conor Jr., Croía, Rían and Mack.

Who is the mother of Conor McGregor’s children?

Dee Devlin is the mother of all four children.

Are Conor McGregor and Dee Devlin married?

Yes. They married in Vatican City on 12 December 2025.

How old is Conor McGregor Jr.?

Conor Jr. is nine on 13 August 2026; he was born on 5 May 2017.

Who is Conor McGregor’s youngest child?

Mack, born in December 2023, is the youngest.

Do Conor McGregor’s children compete professionally?

No reliable evidence establishes professional careers for any of the four minors.