This study is the most comprehensive ever conducted in Thailand examining the experiences of and social attitudes towards lesbian, gay, bisexual and transgender (LGBT) people. It involved a survey with 2,210 participants from across the country, including 1,349 LGBT people and 861 non-LGBT people, and focus group discussions in Bangkok, Chiang Mai, Phitsanulok and Pattani. The study found that there are overall favourable attitudes towards LGBT people in Thailand and significant support for inclusive laws and policies, but also persistent experiences of stigma and discrimination, violence and exclusion.