This is a list of string quartet composers, chronologically sorted by date of birth and then by surname. It includes only composers who have Wikipedia articles. This list is by no means complete. String quartets are written for four string instruments—usually two violins, viola and cello—unless stated otherwise.

Crisantemi, (Chrysanthemums), SC 65, is a composition for string quartet written by Giacomo Puccini in 1890 as a tribute to the death of Amadeo I of Spain, a son of the Italian King, Vittorio Emanuele II.

The Italian composer Giacomo Puccini (1858–1924) is regarded as the natural successor to the tradition of Giuseppe Verdi and is considered the greatest Italian opera proponent of his time. Best known for his 12 operas, his style quickly departed from the predominant Romantic Italian style and he emerged as the most significant representative of verismo, a radically realist approach.

The Italian composer Giacomo Puccini (1858–1924) is regarded as the natural successor to the tradition of Giuseppe Verdi and is considered the greatest Italian opera proponent of his time. Best known for his 12 operas, his style quickly departed from the predominant Romantic Italian style and he emerged as the most significant representative of verismo, a radically realist approach.