Hee Seo is a South Korean ballet dancer best known for her work as a principal dancer with American Ballet Theatre (ABT), one of the leading classical ballet companies in the United States.
Seo made history in 2012 when she became the first Korean ballerina to be promoted to principal dancer in American Ballet Theatre’s history.
Quick Facts
- Full Name: Hee Seo
- Korean Name: 서희
- Date of Birth: March 13, 1986
- Age: 40
- Birthplace: Seoul, South Korea
- Nationality: South Korean
- Profession: Ballet Dancer
- Known For: Principal dancer with American Ballet Theatre
- Education: Sunhwa Arts School, Kirov Academy of Ballet, John Cranko School
- Dance Style: Classical Ballet
- Height: Not publicly confirmed
- Husband: Married; her husband’s identity is not consistently confirmed in reliable public biographies
- Children: She has a child, according to published biographical information
- Organisation: Hee Seo Foundation
- Net Worth: $5 million
Early Life and Education
Hee Seo was born in Seoul, South Korea, and spent part of her childhood developing interests in the arts. She did not initially plan to become a professional ballet dancer. Her mother introduced her to ballet around age 12, encouraging her to take a dance class instead of continuing swimming lessons.
Seo’s talent became apparent early in her training. She entered Sunhwa Arts School in Seoul, where she received formal ballet instruction. Her progress earned her a place at the Kirov Academy of Ballet in Washington, D.C.
She later received a scholarship to train at the John Cranko School in Stuttgart, Germany. The school provided advanced ballet training and exposed her to the professional environment of European classical dance.
Two competitions became important milestones in her development. In 2003, she received a scholarship at the Prix de Lausanne and won the Grand Prix at the Youth America Grand Prix in New York. These achievements helped open doors to international ballet opportunities.
Training in South Korea, the United States, and Germany gave her a foundation in classical technique and prepared her for a professional career with an internationally recognised ballet company.
Career
Hee Seo began her professional ballet journey in Europe after training at the John Cranko School in Stuttgart. She danced with the Stuttgart Ballet before joining American Ballet Theatre’s Studio Company in 2004.
In May 2005, Seo became an apprentice with ABT’s main company. She joined the corps de ballet in March 2006, beginning a period of steady professional development within the organisation. Her technical ability, musicality, and performances in classical and contemporary works helped her progress through the company’s ranks.

In August 2010, she was promoted to soloist. Two years later, in July 2012, she became a principal dancer, making history as the first Korean ballerina to achieve that rank at American Ballet Theatre. The promotion established her as one of the company’s leading performers and brought wider attention to her international ballet career.
Seo’s repertoire includes some of classical ballet’s best-known roles and productions. She has performed in Swan Lake, Giselle, Romeo and Juliet, The Sleeping Beauty, Don Quixote, La Bayadère, Cinderella, Manon, Onegin, La Sylphide, Sylvia, and The Nutcracker. She has also performed in contemporary and modern works, demonstrating her ability to work with different choreographic styles.
Among the roles she has particularly valued is Odette and Odile in Swan Lake. The dual role requires a dancer to portray two contrasting characters, the gentle White Swan and the darker Black Swan, while maintaining demanding technical precision throughout the ballet. Seo has described the role as both challenging and rewarding.
During her career with ABT, Seo has worked with renowned choreographers and ballet artists, including Alexei Ratmansky, Christopher Wheeldon, and George Balanchine through their works in the company’s repertoire. Her performances have also brought her together with fellow ABT dancers such as Cory Stearns, Roberto Bolle, and other leading performers in classical productions.
In 2023, Seo performed Sea Shadow with Cory Stearns as part of a centennial celebration honouring choreographer Gerald Arpino. The performance gave her an opportunity to explore Arpino’s choreography and work closely with Stearns in a production outside the standard classical repertoire.
Seo has also returned to South Korea for performances and professional engagements. In April 2025, she joined fellow Korean dancers from ABT for the company’s performances in Seoul. After around two decades with the company, she reflected on the confidence and self-respect she had developed through years of dedicated work.
Alongside performing, Seo has contributed to ballet education and the development of younger dancers. She established the Hee Seo Foundation in 2015 to support promising ballet students through scholarships, training opportunities, and educational programmes. The foundation has organised activities connected with the Youth America Grand Prix and its Korean programmes, helping young dancers access professional development.
Personal Life
Hee Seo keeps much of her private life out of the public eye. Public biographies provide limited information about her immediate family, and detailed information about her husband is not consistently documented across reliable sources.
She is believed to have a child, but she generally keeps details about her family out of the spotlight. Her family played an important role in her early development as a dancer. Her mother encouraged her to take ballet classes as a child, a decision that eventually led to her professional career.
Seo has also spoken about the importance of receiving financial support during her training. Scholarships helped her pursue ballet education abroad, and that experience influenced her decision to support young dancers through the Hee Seo Foundation.
Hee Seo’s Net Worth
Hee Seo’s net worth is estimated to be around $5 million. Her professional income comes from her work as a principal ballet dancer, performances, and other ballet-related engagements.
She also leads the Hee Seo Foundation, which supports ballet education and scholarships. The foundation’s charitable activities should not be confused with her personal income or assets.
Frequently Asked Questions
- Who is Hee Seo?
Hee Seo is a South Korean ballet dancer who became the first Korean ballerina to be promoted to principal dancer at American Ballet Theatre in 2012.
- How old is Hee Seo?
Biographical sources list her birthdate as March 13, 1986, which would make her 40 in October 2026.
- Where was Hee Seo born?
She was born in Seoul, South Korea.
- Which ballet company does Hee Seo dance with?
She is known for her career as a principal dancer with American Ballet Theatre.
- When did Hee Seo become a principal dancer?
She was promoted to principal dancer in July 2012.
- Which ballet schools did Hee Seo attend?
She trained at Sunhwa Arts School in South Korea, the Kirov Academy of Ballet in Washington, D.C., and the John Cranko School in Stuttgart, Germany.
- What are Hee Seo’s most notable ballet performances?
Her repertoire includes Swan Lake, Giselle, Romeo and Juliet, The Sleeping Beauty, Don Quixote, and La Bayadère.
- What is the Hee Seo Foundation?
Seo established it to support talented young ballet dancers through scholarships, training, and educational opportunities.
- Is Hee Seo married?
Published biographical information indicates she is married, but reliable public sources do not consistently confirm her husband’s identity.
- What is Hee Seo’s net worth?
Hee Seo’s net worth is estimated to be around $5 million
