Dwight Filley Davis (July 5, 1879 – November 28, 1945) was an American tennis player and politician. He is best remembered as the founder of the Davis Cup international tennis competition.
Davis was born in St. Louis, Missouri. He was the runner-up for the men's singles title at the US Championships in 1898. He then teamed-up with Holcombe Ward won the men's doubles title at the championships for three years in a row from 1899-1901. Davis and Ward were also men's doubles runners-up at Wimbledon in 1901.
In 1900, Davis developed the structure for, and donated a silver bowl to go to the winner of, a new international tennis competition designed by him and three others known as the International Lawn Tennis Challenge, which was later renamed the Davis Cup in his honor. He was a member of the US team that won the first two competitions in 1900 and 1902, and was also the captain of the 1900 team.