Sir George Frederic Still, KCVO (27 February 1868 – 28 June 1941) was an English paediatrician and author of five medical textbook, and he published hundreds of papers.
Still first described a form of juvenile idiopathic arthritis as well as the common functional Still's murmur, both of which bear his name.
He was also one of the first to describe ADHD.
He is frequently referred to as the "Father of British Paediatrics".