伦敦皇家自然知识促进学会（英语：The Royal Society of London for Improving Natural Knowledge），简称皇家学会（Royal Society），是英国资助科学发展的组织，成立于1660年，并于1662年、1663年、1669年领到皇家的各种特许状。学会宗旨是促进自然科学的发展，它是世界上历史最长而又从未中断过的科学学会，在英国起着国家科学院的作用。英国女王是学会的保护人。

The President, Council, and Fellows of the Royal Society of London for Improving Natural Knowledge, commonly known as the Royal Society, is a learned society for science and is possibly the oldest such society still in existence. Founded in November 1660, it was granted a royal charter by King Charles II as "The Royal Society". The Society is the UK and Commonwealth's Academy of Sciences and fulfills a number of roles; promoting science and its benefits, recognising excellence in science, supporting outstanding science, providing scientific advice for policy, fostering international and global cooperation, education and public engagement.