The paper presents an overview of ethical issues in clinical psychology. Specifically, it addresses the broad philosophical ideas and views on mental illness on which ethical principles are based, including Greek philosophy and Christianity. It goes on to describe the ethical code of the American Psychological Association as it pertains to general principles, psychological assessment or psychometry, education or training and psychological interventions. The principles of the code and research on the same are discussed with relevance to issues and challenges to ethical practice in India, and suggestions for ethical conduct are made. The paper emphasises the need to consider different viewpoints and take individual responsibility for difficult decisions.