Khan Abdul Ghani Khan SI (Pashto: خان عبدالغنی خان; c. 1914 – 15 March 1996) was a Pakistani Pashtun philosopher, poet, artist, writer and politician. He was a son of Abdul Ghaffar Khan, a prominent British Raj-era Indian independence activist. Throughout his life as a poet in both British India and Afghanistan, Khan was known by the titles Lewanay Pālsapay (لېونی فلسفی, 'Mad Philosopher') and Da īlam Samander (د علم سمندر, 'Ocean of Knowledge')