Clifford Grey (5 January 1887 – 25 September 1941) was an English songwriter, librettist and screenwriter. His birth name was Percival Davis, and he was also known as Clifford Gray.

Grey contributed prolifically to dozens of West End and Broadway shows, for the period from the First World War to the Second World War, as librettist and lyricist for composers including Ivor Novello, Jerome Kern, Howard Talbot, Ivan Caryll and George Gershwin. Among his best-remembered songs are two from early in his career, in 1916: "If You Were the Only Girl (In the World)" and "Another Little Drink Wouldn't Do Us Any Harm". His later hits include "Got a Date with an Angel" and "Spread a Little Happiness". He also wrote lyrics and screenplays for dozens of films released from 1929 to 1941, and they were used in films released posthumously.

For 35 years after 1979 it was widely believed that Grey secretly competed as an American bobsleigher, under the name Clifford "Tippy" Gray, in two Winter Olympics, in 1928 and 1932, winning gold medals, but it was finally shown that the sportsman was a different person.