William David Ross, Scottish philosopher (died 1971)

Sir William David Ross, known as David Ross but usually cited as W. D. Ross, was a Scottish Aristotelian philosopher, translator, WWI veteran, civil servant, and university administrator. His best-known work is The Right and the Good (1930), in which he developed a pluralist, deontological form of intuitionist ethics in response to G. E. Moore's consequentialist form of intuitionism. Ross also critically edited and translated a number of Aristotle's works, such as his 12-volume translation of Aristotle together with John Alexander Smith, and wrote on other Greek philosophy.

April 15 is the 105th day of the year in the Gregorian calendar; 260 days remain until the end of the year.