Rosemary Conley, CBE (born 19 December 1946, in Leicestershire) is an English businesswoman, author and broadcaster on exercise and health. She is the founder and president of Rosemary Conley Diet And Fitness Clubs, a franchise-based organisation that is, alongside Slimming World and Weight Watchers, one of the "big three" weight loss organisations in the UK. She has released several exercise videos and books.
The Rosemary Conley approach is characterised by a low-fat diet regime, but what distinguishes the organisation from its competitors is that classes also offer a 45 minute aerobic workout with a trained instructor. Thus it provides a fitness club for people wanting an alternative to gym membership rather than simply another "fat club" for dieters, although there are similar product endorsements of foods and kitchen equipment.
In 1982 one of Conley's first fitness videos 'Whole Body Programme' was released by the BBC and was a number one best seller. She since went on to release a total of 29 fitness videos. The thirtieth and "last" video was released in December 2009. However, in 2002 she released a video entitled Rosemary Conley's ultimate Body Workout, which she also claimed was to be her "last" video. since that she went on to release a further 6 videos.