Hilda Clark (1872 – May 5, 1932) was an American model and actress. She was born in Leavenworth, Kansas, to Lydia and Milton Edward Clark. As a young adult she moved east to Boston to become a popular music hall singer and actress. However, Clark became famous as a model in 1895 when she became the first woman to be featured on a tin Coca-Cola tray. Hilda Clark remained the advertising "face" of Coca-Cola until February 1903 when she married Frederick Stanton Flower in New York, taking the name Hilda Clark Flower.
Flower was a nephew of New York Governor Roswell P. Flower. Clark had been an active socialite in Boston but retired from the stage when she married. Frederick Flower was a millionaire, involved in banking concerns and director of several railroads. Flower died in December 1930.