Bartolomeo Campagnoli (September 10, 1751 – November 6, 1827) was a violinist and composer from Italy. He was a brilliant musician who toured Europe, spreading the Italian violin style of the 18th century. Bartolomeo was born in Cento, where his father worked as a merchant. He studied the violin locally, first in Bologna and then in 1763, in Modena, with Paul Guastarobba, who had previously studied with the renowned violinist Giuseppe Tartini. In 1766, he returned home and joined a local orchestra. In 1768, he continued his studies in Venice and Padua, where Tartini was still a resident. Campagnoli spent a few years in Florence, where he studied violin with Pietro Nardini, and this period significantly impacted his career. He also played in the Teatro Della Pergola's orchestra in Florence. Then, in 1775, he moved to Rome and joined Teatro Argentina's orchestra. He was named kapellmeister to the bishop of Freising in Bavaria in 1776.

In 1778, he went on a concert tour of northern Europe, spending three months in Grodno and three months in Warsaw (Gerber 1812, 617). In 1779, he was appointed to the Duke of Courland's court in Dresden. While holding this position, he went on tour; in 1783, he toured Sweden, where he was elected a member of the Royal Swedish Academy of Music Stockholm; and in 1784, he toured Europe, primarily in Germany and Austria. In 1797, he produced Metodo per Violino, a treatise on violin playing that can demonstrate the manner of the Baroque and Classical periods. Finally, he left the Duke of Courland's court and was named concertmaster of the Leipzig Gewandhaus Orchestra in 1797, a position he held until 1818. Then, in 1801, he went to Paris and was blown away by the violinist Rodolphe Kreutzer's performance. During Campagnoli's tenure in Leipzig, violinist and composer Louis Spohr, who was in town for a concert, saw Campagnoli perform a Rodolphe Kreutzer violin concerto. "His method, it is true, is of the old school; but his play is clean and accomplished," he noted in his diary.