Timothy Reuben Ladbroke "Tim" Black CBE (7 January 1937 – 11 December 2014) was a family planning pioneer and founder of Marie Stopes International in London. He served as chief executive of Marie Stopes International for 30 years, from 1976 to 2006. During that time he built Maries Stopes International into one of the world's largest family planning organisations, which now works in more than 40 countries providing family planning and reproductive healthcare to over six million couples each year. Tim was awarded the CBE in the 1994 Queen’s Birthday Honours for ‘Services to International family Planning in Developing Countries’.