| TL;DR Jack Osbourne has five siblings: two full sisters, two half-siblings and one adoptive older brother. Most websites say four and miss one.His full sisters are Aimee Osbourne (born 1983) and Kelly Osbourne (born 1984). Jack, born on 8 November 1985, is the youngest of all Ozzy’s children.From Ozzy’s first marriage to Thelma Riley, he has half-siblings Louis and Jessica Osbourne, plus Elliot Kingsley, Thelma’s son whom Ozzy adopted.Jack has said he and Aimee “don’t have a great relationship”, even though they stood together at Ozzy’s funeral in 2025.Kelly is the sibling he is closest to; the two grew up on camera together in MTV’s The Osbournes. |
Jack Osbourne grew up in one of the most famous families in rock, and in front of millions of TV viewers. But the Osbourne family is bigger than the four faces most people remember from MTV.
Here is a full guide to every one of Jack’s siblings: who they are, how they are related, and where they are now.
How Many Siblings Does Jack Osbourne Have?
Jack Osbourne has five siblings. This is where most articles go wrong: they count four and leave out Elliot Kingsley, Ozzy’s adopted son from his first marriage.
| Sibling | Born | Relationship to Jack | Parents |
| Elliot Kingsley | 1966 | Adoptive half-brother | Thelma Riley (adopted by Ozzy) |
| Louis Osbourne | 1975 | Half-brother | Ozzy Osbourne and Thelma Riley |
| Jessica Osbourne | 1979 | Half-sister | Ozzy Osbourne and Thelma Riley |
| Aimee Osbourne | 2 September 1983 | Full sister | Ozzy and Sharon Osbourne |
| Kelly Osbourne | 27 October 1984 | Full sister | Ozzy and Sharon Osbourne |
| Jack Osbourne | 8 November 1985 | The youngest | Ozzy and Sharon Osbourne |
Sources: Wikipedia: Aimee Osbourne, Wikipedia: Jack Osbourne, Wikipedia: Kelly Osbourne.
Another common mistake is to call Kelly and Aimee Jack’s “younger sisters”. They are both older. Jack is the baby of the family on both sides.
Jack’s Full Siblings
Kelly Osbourne
Kelly Michelle Lee Osbourne was born on 27 October 1984 in Westminster, London. She is just over a year older than Jack and is the sibling he is best known alongside.
The two became famous together on The Osbournes, MTV’s hit reality show that began in 2002. The show often featured their loud sibling rows, which became one of its trademarks.
Kelly went on to a career as a TV presenter, singer, actress and fashion designer. She released two studio albums, and her early hit with her father, “Changes”, reached number one in the UK in 2003.
She has a son with Slipknot DJ Sid Wilson, to whom she became engaged in 2025.
Aimee Osbourne
Aimee Rachel Osbourne was born on 2 September 1983 in London. She is Ozzy and Sharon’s eldest child and the family’s most private member.
Aimee famously refused to take part in The Osbournes and moved out of the family home rather than be filmed. She has since built a music career and sings under the name ARO.
In May 2022 she narrowly escaped a fire at a Hollywood recording studio, according to Wikipedia.
Jack and Aimee: The Sibling Relationship
Jack has been unusually open about his distance from his eldest sister. Days after the family appeared together at Ozzy’s funeral procession in Birmingham on 30 July 2025, Jack confirmed that the pair are not close.
He said they don’t have a great relationship, adding that Aimee chose privacy and obscurity and that the two have never really discussed her decision to avoid the spotlight.
Even so, they have come together for their father. In 2026 Jack shared photos of himself, Aimee and Sharon at the US Capitol in Washington, where the family was presented with a Congressional Record in Ozzy’s honour.
| Key Takeaway Public appearances together do not mean the siblings are close. Aimee’s decision to stay out of The Osbournes shaped her relationship with Jack for more than two decades. |
Jack’s Half-Siblings From Ozzy’s First Marriage
Before he met Sharon, Ozzy was married to Thelma Riley for around 11 years. That marriage produced Jack’s three oldest siblings.
Elliot Kingsley
Elliot Kingsley, born in 1966, is Thelma Riley’s son from a previous relationship. Ozzy adopted him during their marriage, making him Jack’s oldest sibling. He is the one most “siblings” articles forget.
Louis Osbourne
Louis Osbourne, born in 1975, is Ozzy and Thelma’s son and Ozzy’s first biological child. He has worked as a DJ and music producer and has largely stayed out of the public eye.
Jessica Osbourne
Jessica Starshine Osbourne, born in 1979, is Ozzy and Thelma’s daughter. Like Louis, she has kept a low profile.
Why the half-siblings are rarely seen
Louis and Jessica grew up mainly with their mother in England while Ozzy toured and later started his new family with Sharon. Both have spoken over the years about having limited contact with their father during childhood.
Unlike Jack and Kelly, none of Ozzy’s children from his first marriage appeared on The Osbournes, which is why many fans do not know they exist.
The Osbourne Siblings After Ozzy’s Death
Ozzy Osbourne died on 22 July 2025, weeks after his farewell Black Sabbath concert in Birmingham. The loss brought the wider family together in public for the first time in years.
Jack, Kelly and Aimee walked with Sharon behind the funeral procession through Birmingham on 30 July 2025, as thousands of fans lined the streets.
Since then, Jack has been heavily involved in honouring his father’s legacy, including the Congressional Record ceremony in Washington.
Who Is Jack Osbourne?
Jack Joseph Osbourne was born on 8 November 1985 in London and holds British and American citizenship. After The Osbournes, he went to rehab as a teenager and then rebuilt his career as a TV presenter.
- Union Jack (Channel 4, 2003), his first show after rehab.
- Jack Osbourne: Adrenaline Junkie (2005–2009), for which he lost around 23kg at a Muay Thai camp in Thailand and climbed El Capitan.
- Saving Planet Earth (BBC, 2007).
In 2012 he revealed he had been diagnosed with multiple sclerosis. He has four daughters, three with his ex-wife Lisa Stelly and one with his wife, Aree Gearhart.
Frequently Asked Questions
How many siblings does Jack Osbourne have?
Jack Osbourne has five siblings: full sisters Aimee and Kelly, half-siblings Louis and Jessica, and adoptive half-brother Elliot Kingsley.
Is Jack Osbourne the youngest?
Yes. Jack, born on 8 November 1985, is the youngest of all Ozzy Osbourne’s children.
Is Kelly Osbourne older than Jack?
Yes. Kelly was born on 27 October 1984, just over a year before Jack.
Why wasn’t Aimee on The Osbournes?
Aimee chose not to take part and moved out of the family home rather than be filmed. She has always preferred to keep her life private.
Are Jack and Aimee Osbourne close?
No. Jack said in 2025 that they “don’t have a great relationship”, though they have appeared together at family events honouring their father.
Who are Ozzy Osbourne’s children from his first marriage?
Louis and Jessica Osbourne, plus Elliot Kingsley, Thelma Riley’s son whom Ozzy adopted.
Who are Jack Osbourne’s parents?
His parents are the late Black Sabbath frontman Ozzy Osbourne and TV personality Sharon Osbourne.
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