Ông già và biển cả (tên tiếng Anh: The Old Man and the Sea) là một tiểu thuyết ngắn được Ernest Hemingway viết ở Cuba năm 1951 và xuất bản năm 1952. Nó là truyện ngắn dạng viễn tưởng cuối cùng được viết bởi Hemingway. Đây cũng là tác phẩm nổi tiếng và là một trong những đỉnh cao trong sự nghiệp sáng tác của nhà văn Hemingwa. Tác phẩm này đoạt giải Pulitzer cho tác phẩm hư cấu năm 1953. Nó cũng góp phần quan trọng để nhà văn được nhận Giải Nobel văn học năm 1954.
Trong tác phẩm này ông đã triệt để dùng nguyên lý mà ông gọi là “tảng băng trôi”, chỉ mô tả một phần nổi còn lại bảy phần chìm, khi mô tả sức mạnh của con cá, sự chênh lệch về lực lượng, về cuộc chiến đấu không cân sức giữa con cá hung dữ với ông già. Tác phẩm ca ngợi niềm tin, sức lao động và khát vọng của con người.
Ernest Miller Hemingway was an American novelist, short-story writer and journalist. Best known for an economical, understated style that significantly influenced later 20th-century writers, he is often romanticized for his adventurous lifestyle, and outspoken and blunt public image. Most of Hemingway's works were published between the mid-1920s and mid-1950s, including seven novels, six short-story collections and two non-fiction works. His writings have become classics of American literature; he was awarded the 1954 Nobel Prize in Literature, while three of his novels, four short-story collections and three nonfiction works were published posthumously. Hemingway was raised in Oak Park, Illinois. After high school, he spent six months as a cub reporter for The Kansas City Star before enlisting in the Red Cross. He served as an ambulance driver on the Italian Front in World War I and was seriously wounded in 1918. His wartime experiences formed the basis for his 1929 novel A Farewell to Arms. He married Hadley Richardson in 1921, the first of four wives. They moved to Paris where he worked as a foreign correspondent for the Toronto Star and fell under the influence of the modernist writers and artists of the 1920s' "Lost Generation" expatriate community. His debut novel The Sun Also Rises was published in 1926. He divorced Richardson in 1927 and married Pauline Pfeiffer. They divorced after he returned from the Spanish Civil War, where he had worked as a journalist and which formed the basis for his 1940 novel For Whom the Bell Tolls. Martha Gellhorn became his third wife in 1940. He and Gellhorn separated after he met Mary Welsh Hemingway in London during World War II. Hemingway was present with Allied troops as a journalist at the Normandy landings and the liberation of Paris. He maintained permanent residences in Key West, Florida, in the 1930s and in Cuba in the 1940s and 1950s. On a 1954 trip to Africa, he was seriously injured in two plane accidents on successive days, leaving him in pain and ill health for much of the rest of his life. In 1959, he bought a house in Ketchum, Idaho, where, on July 2, 1961 (a couple weeks before his 62nd birthday), he killed himself using one of his shotguns.