Sir George Howard Darwin, F.R.S. (July 9 1845 - December 7 1912) was a British astronomer and mathematician, the second son and fifth child of Charles and Emma Darwin.
He studied under Charles Pritchard. Went on to study at Cambridge University and was admitted to the Bar, but returned to science. In 1883 he became Plumian Professor of Astronomy and Experimental Philosophy at Cambridge University He studied tidal forces involving the Sun, Moon, and Earth.
He won the Gold Medal of the Royal Astronomical Society in 1892, and also later served as president of that organization.
Darwin married Martha (Maud) du Puy of Philadelphia. They had two sons (see Charles Galton Darwin), and two daughters.