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Kyoko Chan Cox Bio, Wiki, Age, Height, Yoko Ono, Father, Husband, Kids, Singer and Net Worth

Last Updated on January 14, 2025: By Loiza Mourine

Kyoko Chan Cox Biography

Kyoko Chan Cox (born in 1963) is a Japanese-American teacher, singer, and songwriter. She is best known as the first child of popular artist Yoko Ono, the widow of John Lennon. Kyoko was born from Yoko Ono’s second marriage to American filmmaker Anthony Cox.

Their relationship was complex, and Kyoko spent most of her childhood primarily with her father. However, Yoko and Kyoko eventually reconnected in 1998, as well as met her half-brother Sean Lennon and now maintain a close relationship.

Kyoko is a talented singer, she was married to lawyer Jim Helfrich and had two children namely  Emi Ono Helfrich, and John David Yeisuke Helfrich before their divorce.

10 Quick Facts About Kyoko Chan Cox

Here is a list of 10 facts


  • Name: Kyoko Chan Cox
  • Age: 61 Years Old
  • Birthday: August 8
  • Zodiac Sign: Leo
  • Height: 5 feet 3½ inches or 1.61 meters.
  • Nationality: American
  • Occupation: Singer-Songwriter, teacher
  • Marital Status: Single
  • Salary: Not known
  • Net worth: $5 Million

Kyoko Chan Cox Age

Chan Cox is 61 years old. She was born on August 8, 1963, in Tokyo, Japan. Kyoko celebrates her birthday on August 8th every year and her birth sign is Leo.

Kyoko Chan Cox Height

Chan stands at a height of 5 feet 3½ inches or 1.61 meters.

Kyoko Chan Cox Weight

Chan weighs approx. 60kgs which is equivalent ot 132 lbs. She has a great body physique and maintains her weight by keeping fit. Her other body measurements are breast, waist, and hip sizes, which are 33-27-35 inches, respectively. Her hair is black and her eyes are dark brown.

Early Life and Education

Kyoko Chan Cox, born in 1963 to Yoko Ono and Anthony Cox, navigated a unique early life. After her parent’s separation, she spent her formative years primarily with her father, Anthony, a film producer and art promoter. This artistic backdrop nurtured Kyoko’s creative spirit, particularly her passion for acting.

Details of her formal education remain private, but we know she attended Walter Reed Junior High School in California, where her early love for the stage likely blossomed. While Kyoko has chosen to keep her personal life out of the spotlight, her artistic journey continues, with whispers of her talent as a singer adding another layer to her fascinating story.

Kyoko Chan Cox Family, Parents, and Siblings

Chan Cox, daughter of Yoko Ono, is a renowned conceptual artist, musician, and peace activist. Her father, Anthony Cox, was a film producer and art promoter. She has a half-brother, Sean Lennon, born to her mother.

Kyoko Chan Cox Husband

Chan Cox’s current marital or relationship status is not known. She was married to lawyer Jim Helfrich for over two decades. They separated in January 2018, and Kyoko now lives with her children in Denver, Colorado, as per her Facebook post.

Kyoko Chan Cox Children

Cox is a mother of two kids from her marriage to John David Yeisuke Helfrich. her children are Emi Ono Helfrich (born on September 4, 1997, in Denver, Colorado.) and John David Yeisuke Helfrich. Yoko Ono is very close to her grandchildren.

Kyoko Chan Cox Net Worth

Cox has an estimated net worth of $5 million. This includes her assets, money, and income. Her primary source of income is her family’s inheritance and career. Through her various income sources, she has accumulated good fortune but prefers to lead a modest lifestyle.

A photo of Kyoko, half brother Sean Lennon and their mothr Yoko Ono
A photo of Kyoko, half brother Sean Lennon and their mothr Yoko Ono

Body Measurements and Facts

Here are some interesting facts and body measurements you should know about Kyoko Cox

Kyoko Chan Cox Wikipedia

  • Full Name: Kyoko Chan Cox
  • Popular As: Kyoko
  • Gender: Female
  • Occupation / Profession: Teacher, Singer and Songwriter
  • Religion: Not known
  • Race / Ethnicity: Not known
  • Sexual Orientation: Straight

Kyoko Chan Cox Birthday

  • Age: 70 Years Old
  • Zodiac Sign: Leo
  • Date of Birth: August 8, 1963
  • Place of Birth. Tokyo, Japan
  • Birthday: August 8th

Kyoko Chan Cox Measurements

  • Height / How Tall?: 5 feet 3 inches
  • Weight: 60 kg
  • Eye Color: Dark brown
  • Hair Color: Black
  • Shoe Size: Not known

Kyoko Chan Cox Family and Relationships

  • Father (Dad): Yoko Ono
  • Mother: Anthony Cox
  • Siblings (Brothers and Sisters): Half-brother Sean Lennon
  • Marital Status: Single
  • Husband/Boyfriend: lawyer Jim Helfrich
  • Children: Two

Kyoko Chan Cox Net Worth and Salary

  • Net Worth: $5 million
  • Salary: Not Known 
  • Source of Income: Her career

Career

Kyoko Chan Cox, daughter of Yoko Ono and Anthony Cox, navigated a life less public than her parents. Though born into artistic royalty, she carved her own path, primarily in the world of music. Following in her mother’s footsteps, Kyoko became a singer, releasing several albums throughout the 80s and 90s.

While not achieving the same widespread fame as her parents, she enjoyed a dedicated following in Japan and Europe, known for her unique blend of pop and experimental sounds. Beyond music, Kyoko dabbled in acting, appearing in a few films and television shows, though her musical passion remained her central focus.

Today, she leads a more private life, occasionally collaborating with her mother on artistic projects but largely cherishing her time away from the spotlight.

Kyoko Cox Social Media Accounts

  • Twitter
  • Facebook
  • Instagram

About InformationCradle Editorial Staff

This Article is produced by InformationCradle Editorial Staff which is a team of expert writers and editors led by Josphat Gachie and trusted by millions of readers worldwide.

We endeavor to keep our content True, Accurate, Correct, Original and Up to Date. For complain, correction or an update, please send us an email to informationcradle@gmail.com. We promise to take corrective measures to the best of our abilities.

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