Year 1915 (MCMXV) was a common year starting on Friday (link will display the full calendar) of the Gregorian calendar and a common year starting on Thursday of the 13-day-slower Julian calendar.

Below, the events of World War I have the "WWI" prefix.

Mustafa Kemal Atatürk (pronounced [musˈtäfä ceˈmäl ätäˈtyɾc]; 19 May 1881 (Conventional)–10 November 1938) was an Ottoman and Turkish army officer, revolutionary statesman, writer, and the first President of Turkey. He is credited with being the founder of the Republic of Turkey.

Atatürk was a military officer during World War I. Following the defeat of the Ottoman Empire in World War I, he led the Turkish national movement in the Turkish War of Independence. Having established a provisional government in Ankara, he defeated the forces sent by the Allies. His military campaigns gained Turkey independence. Atatürk then embarked upon a program of political, economic, and cultural reforms, seeking to transform the former Ottoman Empire into a modern, westernized and secular nation-state. The principles of Atatürk's reforms, upon which modern Turkey was established, are referred to as Kemalism.

Sir Charles Spencer "Charlie" Chaplin, KBE (16 April 1889 – 25 December 1977) was an English comic actor, film director and composer best known for his work during the silent film era. He became the most famous film star in the world before the end of World War I. Chaplin used mime, slapstick and other visual comedy routines, and continued well into the era of the talkies, though his films decreased in frequency from the end of the 1920s. His most famous role was that of The Tramp, which he first played in the Keystone comedy Kid Auto Races at Venice in 1914. From the April 1914 one-reeler Twenty Minutes of Love onwards he was writing and directing most of his films, by 1916 he was also producing them, and from 1918 he was even composing the music for them. With Mary Pickford, Douglas Fairbanks and D. W. Griffith, he co-founded United Artists in 1919.

Chaplin was one of the most creative and influential personalities of the silent-film era. He was influenced by his predecessor, the French silent film comedian Max Linder, to whom he dedicated one of his films. His working life in entertainment spanned over 75 years, from the Victorian stage and the music hall in the United Kingdom as a child performer, until close to his death at the age of 88. His high-profile public and private life encompassed both adulation and controversy. Chaplin was identified with left-wing politics during the McCarthy era and he was ultimately forced to resettle in Europe from 1952.

Mary Violet Leontyne Price (born February 10, 1927) is an American soprano. Born and raised in the Deep South, she rose to international acclaim in the 1950s and 1960s, and was one of the first African Americans to become a leading artist at the Metropolitan Opera.

One critic characterized Price's voice as "vibrant", "soaring" and "a Price beyond pearls", as well as "genuinely buttery, carefully produced but firmly under control", with phrases that "took on a seductive sinuousness." Time magazine called her voice "Rich, supple and shining, it was in its prime capable of effortlessly soaring from a smoky mezzo to the pure soprano gold of a perfectly spun high C."

A lirico spinto (Italian for "pushed lyric") soprano, she was considered especially well suited to the roles of Giuseppe Verdi and Giacomo Puccini, as well as several in operas by Wolfgang Amadeus Mozart. Her voice ranged from A-flat below middle C to the E above high C. (She said she reached F "in the shower.")

After her retirement from the opera stage in 1985, she continued to appear in recitals and orchestral concerts for another 12 years.

Francesca Bertini (born Elena Seracini Vitiello; 11 April 1892 – 13 October 1985) was an Italian silent film actress. She was one of the most successful silent film stars in the first quarter of the twentieth-century.

Born in Florence, she was daughter of a comic theatre actress. Bertini began performing on stages as a child, particularly in Naples, where her family was settled. In 1904, at the age of 16, she moved to Rome, where she improved her acting skills, especially on theatre stages, and attempted to perform in the just-born Italian movie production.

Her first important movie, Histoire d'un pierrot, was under the direction of Baldassarre Negroni in 1913. Gradually she developed her beauty and elegance, plus a strong, intense, and charming personality, which would be the key of her success as a silent movie actress. With Assunta Spina in 1915 she took care of the scripts as well as performing the role of the main character. Bertini was popular internationally, her sophistication emulated around the world by women moviegoers. Reputedly, in 1915 she earned $175,000—a record for the time; Mary Pickford wouldn't catch up until the following year. She developed the current acting techniques of movie actresses by making it more sober, banning broad gestures or the mincing ways of the Diva. She is one of the first film actresses to focus on reality, rather than on a dramatic stereotype, an anticipation of Neorealistic canons. The expression of authentic feelings was the key of her success through many films. She could perform with success the languid decadent heroine as well as the popular common woman. Other important roles were Odette, Fedora, Tosca and the Lady of the Camellias.