Ward Louis "Piggy" Lambert (May 28, 1888 – January 20, 1958) was an American basketball and baseball coach. He served as the head basketball coach at Purdue University during the 1916–17 season and from 1918 to 1946. Lambert was also the head baseball coach at Purdue in 1917, from 1919 to 1935, and from 1945 to 1946. He was inducted into the Naismith Memorial Basketball Hall of Fame in 1960.