Friedrich Küchler (1867 - 1937) was a German violinist, violist, and composer best known for his violin concertos and instructional texts. He began his musical education at the Hoch Conservatory in Frankfurt am Main, studying violin with Johann Naret-Koning and Hugo Heermann, and music theory with Arthur Egidi and Iwan Knorr from 1883 to 1888. After completing his studies, Küchler took his first job as principal violist of the Symphony Orchestra in Basel and later began teaching violin at the local music school. In 1898, he was appointed a violin teacher at the Hoch Conservatory in Frankfurt, and was also violist of the Heermann Quartet led by his former teacher.
Küchler returned to Basel in 1910 and became the director of a private music school, working as a choral conductor as well. From 1927 to 1936, he taught violin at the Landeskonservatorium der Musik zu Leipzig (State Conservatory of Leipzig).
In addition to his performing and teaching career, Küchler also wrote textbooks on violin technique and composed instructive pieces for the violin, including several student concertos. His two-volume Course of Violin Instruction (published by Hug-Verlag, Zürich) was a cornerstone of the violin instructional literature until the mid-1960s. Küchler's works are still widely used today as an excellent resource for young violin students and teachers.