The Imperial Cancer Research Fund was a cancer research organization in the United Kingdom. In 2002, it merged with Cancer Research Campaign to form Cancer Research UK.
The ICRF was founded in 1902 as the Cancer Research Fund, changing its name to the Imperial Cancer Research Fund two years later. The charity grew over the next twenty years to become one of the world's leading cancer research charities. Until merger, it made huge contributions to almost every area of cancer research.
Its laboratories at Lincoln's Inn Fields and Clare Hall are now known as the Cancer Research UK London Research Institute.