Mechai Viravaidya (born January 17, 1941, Thai: มีชัย วีระไวทยะ; RTGS: Michai Wirawaithaya) is a former politician and activist in Thailand who has popularized condoms, family planning and AIDS awareness in that country. Since the 1970s, Mechai has been affectionately known as "Mr. Condom" in Thailand, and condoms have sometimes been referred to as "mechais" there. From the time that he began his work, the average number of children in Thai families has decreased from 7 to 1.5.
Mechai was born in Thailand to a Scottish mother and a Thai father, both of whom were doctors. They met whilst studying in Edinburgh. He is one of four children. His younger brother, Sunya, is the founder of the Pattaya International Hospital. One of his two sisters, Sumalee, was formerly a journalist in Bangkok. Mechai was educated at Geelong Grammar School and at the University of Melbourne in Australia. In the mid-1960s he returned to Thailand and started to work in family planning, emphasizing condoms. In 1973, he left government and founded a non-profit service organization, the Population and Community Development Association (PDA), to continue the work to improve the lives of the rural poor. Among other things, he held condom blowing contests for school children, encouraged taxi cab drivers to hand out condoms to their customers, and founded a restaurant chain called Cabbages and Condoms where condoms, rather than mints or fortune cookies, are given to customers together with the bill.
An interesting side note is the family planning clinic which openly operates next to the Cabbages and Condoms restaurant. This is one of several places in Bangkok where poor women can receive pregnancy termination, a practice which is legal in the country per Section 305 of the Thailand penal code, but often perceived as illegal. The clinic is permitted by the authorities due to the dangers of unsafe abortion by Thai women because of "economic difficulties".
Mechai served as deputy minister of industry from 1985 to 1986 under prime minister Prem Tinsulanonda. He served as senator from 1987 until 1991. During this time AIDS appeared in Thailand, and he increased his efforts to promote sexual-safety awareness.
A military coup in 1991 installed prime minister Anand Panyarachun who then appointed Mechai minister for tourism, information and AIDS. He was able to start a large and quite successful AIDS education campaign and served until 1992.
In 2004, Mechai again became a senator. In 2006 he won praise from the toilet industry (but criticism from the retail industry) for proposing that retailers be obliged to build a public toilet for every 10 square metres of retail space.
As of 2007, he continues to oversee rural development and health initiatives as the Chairman of PDA, now the largest NGO in Thailand, with 600 employees and 12,000 volunteers. On May 29, 2007, PDA was awarded the 2007 Bill & Melinda Gates Foundation's Gates Award in recognition of its pioneering work in family planning and HIV/AIDS prevention. This award came with funds of $1,000,000.
- Mechai Viravaidya, 60 Years of Asian Heros, Time Asia, 13 November 2006
- Six influential Asians changing their part of the world., International Herald Tribune, 21 April 2005
- TED Talk, 07 October 2010
- Successfully Yours: Mechai Viravaidya; Conversations/Mechai Viravaidya; Brash and Unabashed, Mr. Condom Takes on Sex and Death in Thailand
- Thailand Penal Code Section 301-305
- Thailand, in The International Encyclopedia of Sexuality, 1997-2001
- The Health Impact of Unsafe Abortion
- It;s an Honour
- Toilet-train food firms: Mechai, The Nation, 18 November 2006
- 2007 Gates Award for Global Health: PDA, Bill and Melinda Gates Foundation. Retrieved 2010-01-02.
- Mike Nizza (2007-05-29), "Cabbages and Condoms, a Winning Idea", The Lede
Further reading 
- Thomas D'Agnes. From condoms to cabbages: An authorized biography of Mechai Viravaidya. Post Books 2001. ISBN 974-228-009-6
- Curriculum Vitae of Mechai Viravaidya
- Global Health Champion page, Rx for Survival Series
- A Restaurant with a Mission - Article about Viravaidya and the Cabbages and Condoms restaurant concept.
- Podcast Interview with Mechai Viravaidya Social Innovation Conversations, June 24, 2008