Casey O’Neill Wiki, Bio, Net Worth, Instagram, Family, Husband, Height

Who is Casey O’Neill?

Casey Cameron O’Neill, better known as ‘King Casey’, is a mixed martial artist (MMA) competitor of Scottish descent from Australia. Currently, she is a member of the Ultimate Fighting Championship (UFC) and competes in the Flyweight division.

Besides, she is a popular fighter and is positioned 14th in the UFC Women’s flyweight rankings as of 4th October, 2021.

Profile of Casey O’Neill

Profile of Casey O'Neill
Full NameCasey Cameron O’Neill
Popular AsKing Casey
Birthdate7th October, 1997
Place of BirthIrvine, Scotland, UK
ProfessionPro MMA Fighter
Race / EthnicityUndisclosed
EducationHigh-School Graduate
InstitutionCoombabah State High School
Sexual OrientationStraight
Age25 Years Old
Eye colorBrown
Hair ColorDark Brown
Height5’6″ (168cm)
Marital statusIn a Relationship
ParentsCam O’Neill (Father)
PartnerTy Gwerder
Net Worth$1.5 Million

Casey O’Neil is a terrific MMA competitor in the Ultimate Fighting Championship and competes in the Flyweight division. She is well-recognized by her moniker ‘King Casey’ and holds the placement of 14th in the UFC Womens’ flyweight rankings.

Early-life, Education & Family Background

Early-life, Education & Family Background

Casey Cameron O’Neill was born in Irvine, Scotland on 7th October, 1997 and grew up in Kilmarnock. As of 2022, she is 25 years old and is well-recognized by her title “King Casey”. Accordingly, she is of Scottish ancestry and possesses Australian citizenship. Apparently, her father, Cam O’Neill, was a professional competitive kick-boxer and trained Casey in kickboxing since the age of four. On the other hand, the details of her mother as well as family background have not been revealed.

Subsequently, Casey moved to Australia’s Gold Coast with her family when she was ten years old. She then attended Coombabah State High School for her high-school education. However, she does not appear to have enrolled on to any institution or college thereafter.

In addition, O’Neill began training in other martial arts, such as Brazilian jiu-jitsu, when she was 13 years old. And, at the age of 15, her father agreed and allowed O’Neill to compete in her first amateur MMA fight, which she lost to an opponent four years her senior.

Casey O’Neill’s Professional MMA Career

O'Neill’s Professional MMA Career

Casey has been engaged in the MMA profession for three years, debuting in 2019. Nonetheless, she has achieved a significant degree of popularity and success throughout her brief tenure.

Reportedly, O’Neill made her professional debut against Amira Hafizovi at the Eternal MMA 43 event on 5th April 2019, winning by unanimous decision. Subsequently, she won three additional contests domestically defeating Jada Ketley, Miki Motono, and Caitlin McEwen before accepting her first international competition with the UAE Warriors banner.

Casey O'Neill’s Professional MMA Career

Following that, Casey defeated Christina Stelliou at UAE Warriors 13 in September 2020. Similarly, she defeated Christina Stelliou at UAE Warriors 13 in September 2020. Likewise, on 19th June, 2021, at UFC on ESPN: The Korean Zombie vs. Ige, O’Neill defeated Lara Procópio.

Additionally, O’Neill fought and won Antonina Shevchenko at UFC Fight Night: Santos vs. Walker on 2nd October, 2021. This triumph landed her the award for the “Performance of the Night”. Further, O’Neill most recently fought Roxanne Modafferi at UFC 271 on 12th February, 2022.

O’Neill’s Personal-life & Relationships

O'Neill’s Personal-life & Relationships

Casey O’Neill is currently in a public relationship with Ty Gwerder. Accordingly, her boyfriend Geerder is also a fighter from the Bellator MMA who competes in the Middleweight category. Additionally, Ty also serves a trainer at Omalza Fitness in LA.

Meanwhile, the couple spends a lot of time training with one other and they love to post images of themselves on their social media handles.



Casey O’Neill has a muscular and fit physique that is enhanced by her long brown hair and brown eyes. Moreover, she measures 5 feet 6 inches (168cm) tall and weighs roughly 57 kilograms.

Social Media Handles of Casey O’Neill

Social Media Handles of Casey O'Neill

Casey is very active and popular on social media platforms. She boasts the massive fan-following of 106k on her personal Instagram handle. Similarly, she has more than 21.4k Twitter followers.

InstagramCasey O’Neill
TwitterCasey O’Neill

Net Worth of Casey O’Neill

As of early 2022, Casey O’Neill’s net worth is projected to be about $1.5 million. The principal source of income comes via her professional MMA career as well as brand sponsorships.