My Death, My Decision (MDMD) is an organisation that campaigns for the legalisation of assisted dying in England and Wales. The group was founded in 2009, in order to campaign for a change in the law and advocate on behalf of adults of sound mind, who are either terminally ill or incurably suffering.

Michael Henry Knox Irwin is a British doctor, formerly a GP and a Medical Director with the United Nations. He is a humanist and secular activist, campaigning in particular for voluntary euthanasia and doctor-assisted suicide.