Franz Benda or Czech: František Benda (baptised 22 November 1709, Benátky nad Jizerou – 7 March 1786, Potsdam) was a Bohemian violinist and composer, who worked for much of his life at the court of Frederick the Great.
Benda was born in Benátky nad Jizerou in Bohemia, the son of Jan Jiří Benda. His brother was the composer Jiří Antonín Benda (Georg Anton Benda). Benda's daughter Juliane Reichardt (1752–1783) and his granddaughter Louise Reichardt (1779–1826) were also composers. Benda wrote his autobiography in 1763: it not only gives a detailed account of his own life but also a valuable record of the lives of other musicians whom he encountered during his career.
In his youth Benda was a chorister in Prague and afterward in the Chapel Royal at Dresden. At the same time he began to study the violin, and soon joined a company of strolling musicians who attended fetes, fairs, etc. At eighteen years of age Benda abandoned this wandering life and returned to Prague, going to Vienna, where he pursued his study of the violin under Johann Gottlieb Graun, a pupil of Tartini. After two years he was appointed chapel master at Warsaw. In 1732, he entered the service of Frederick the Great, then crown prince of Prussia, with whom he remained the rest of his life. He was a member of the crown prince's orchestra, and later became concertmaster to the king. He played about 50,000 concertos over a period of forty years. At Benda's request, Frederick allowed his parents and siblings to move to Potsdam when, as Protestants, they suffered religious persecution in Bohemia.