Ensuring mental health and well-being has become a worldwide imperative and an important target of the Sustainable Development Goals. But in all countries around the world, our response has been woefully insufficient, and we have made little progress to advance mental health as a fundamental human right. One in ten people are affected by a mental health condition, up to 200 million people have an intellectual disability and an estimated 50 million people have dementia. Many persons with mental health conditions, or psychosocial, intellectual, or cognitive disabilities lack access to quality mental health services that respond to their needs and respect their rights and dignity.