About Theary Seng
Born 1971. Theary Seng is a Cambodian human rights defender and lawyer.
Theary Chan Seng (born 1971) is a Cambodian-American activist who is currently imprisoned in Cambodia. She is an American and Cambodian dual citizen. Prior to her arrest, she was a human-rights activist and lawyer, former executive director of the Centre for Social Development, and president of the Center for Cambodian Civic Education (CIVICUS Cambodia). She is the author of Daughter of the Killing Fields, a book about her experiences as a child during the Khmer Rouge regime.
She was a high-profile activist for democratic reforms in Cambodia, often wearing elaborate outfits and costumes in order to attract attention to her cause. Her support of the CNRP and the return of its exiled leader, Sam Rainsy, led to the charges of “conspiracy to commit treason” and “incitement to create gross chaos impacting public security,”
In a mass trial in June 2022, Theary Seng along with 60 opposition supporters was sentenced to six years in prison on treason charges, prompting condemnation from rights groups and the U.S. government. The charging document contained no details about Seng other than listing her name as one of the accused and mentioned no details about any charges or alleged criminal wrongdoing against her. Her request to obtain information about the evidence for the charges against her was rebuffed by prosecutors. A few day after being imprisoned in Phnom Penh, she was transferred to a remote prison known for its terrible conditions in Preah Vihear where she now shares a 16x16-foot cell with 19 other women and has been prohibited from attending church services and making phone calls.
Early life Born as Chan Theary Seng, she moved to the United States in December 1980 with her four brothers after the Khmer Rouge was defeated by the Vietnamese army. At the age of seven, Theary had lost both her parents and many relatives to the regime. After 1995, she volunteered to work with a number of labor and human-rights associations. She earned her Juris Doctor degree from the University of Michigan Law School in 2000, and she has been admitted to the New York State Bar Association and American Bar Association. Seng later returned to Cambodia in 2004.
Work She was executive director of the Centre for Social Development, which largely focused on assuring a fair trial in the Khmer Rouge Tribunal. She then became the president of CIVICUS, an organization that works on civic education, reconciliation, and peace-building. Theary organized a darts campaign in Phnom Penh when President Barack Obama paid his first official visit to Cambodia. The game featured former Secretary of State Henry Kissinger, which brought attention to asserted American guilt in bringing the Khmer Rouge to power after the bombing.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Theary Seng's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Theary Seng's
Frequently asked questions
Who is Theary Seng?
Cambodian activist
When was Theary Seng born?
Theary Seng was born in 1971 in Phnom Penh.
What is Theary Seng's occupation?
Theary Seng is a human rights defender and lawyer.
What nationality is Theary Seng?
Theary Seng is Cambodian.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Theary Seng. https://biography.guide/theary-seng/
MLA: "Theary Seng." Biography.guide, https://biography.guide/theary-seng/.
Chicago: "Theary Seng." Biography.guide. https://biography.guide/theary-seng/.
Data last updated: 2026-09-25 · Spot an error? Report a correction.
Page generated 2026-09-27 05:11 UTC