Mengly Jandy Quach

Quach was born in Battambang Province, Cambodia on 25 March 1969. During and after Khmer Rouge regime, Quach survived the Dangrek genocide in Dângrêk Mountains areas. After initially being pushed back by the Thai Royal Army, his family managed to find refuge in Thailand in their second attempt to escape Cambodia. Quach and his family were resettled in the United States in 1984 from Khao-I-Dang Refugee Camp after the war after their first attempt to journey to Nong Chan Refugee Camp in 1979 had failed.

Quach was raised and educated in California. He attended University of California, Berkeley in 1991 for pre-med and received his Doctor of Medicine in General Medicine from Spartan Health Sciences University in 1998. Quach also completed his medical clerkship at the University of Illinois Hospital in Chicago. He received his master's degree in Public Health Practice from the University of Massachusetts Amherst in 2007. Quach was a professor at the Cleveland Chiropractic College in California until 2002.

In 2002, Quach returned to Cambodia where he worked as public health advisor of Integrated Management of Childhood Illness (IMCI) for Partners for Development and taught at the Pannasastra University of Cambodia and the University of Cambodia.

In 2005, Quach founded Mengly J. Quach Education. Its Aii Language Center and American Intercon School to provide education, health care, food, media and financial services. By 2023, his educational programs had grown from a single classroom with just four students into one of Cambodia's biggest educational networks, with over twenty nine school buildings, over 20,000 students.

Quach was the owner and on the advisory board of ThmeyThmey.com, an online news publisher. It was launched in 2012 as part of Mengly J. Quash Holdings. In May 2017, Quach resigned from the advisory board of Thmey Thmey. In his resignation letter, he said he sold his shares and has no more connection with Thmey Thmey.

After he criticized the integrity of Cambodian doctors and their treatments, his application to open a medical practice and university was declined in 2017.

Quach lives in Phnom Penh with his wife and their two daughters.

Quach founded MJQ Foundation in 2005. He is also known for a range of philanthropic endeavours, from sponsoring spelling contests to sponsoring education or providing relief during the economic crisis caused by the COVID-19 outbreak. During a trip to Europe, he made a donation in favour of migrants in Ventimiglia at the border between Italy and France, remembering that he himself was helped when he had to flee his country.