Lev Tseitlin (Russian: Лев Моисеевич Цейтлин), (15 March 1881, Tbilisi - 9 January 1952, Moscow) was a violinist and a professor.
He then went to study with Eugène Ysaÿe in Brussels, and worked as a concertmaster in Orchestre Collone in Paris before returning to Russia in 1906.
From 1918 to 1920 he taught at the Institute of Music and Drama, and from 1920 until the end of his life he was a professor and later a head of the violin departments at the Moscow Conservatory.
The soloists performed with Persimfans included Sergei Prokofiev, Joseph Szigeti, Vladimir Horowitz and Carlo Zecchi.
In the late-1940s and early-1950s Tseitlin suffered a devastating effect of the Russian antisemitic campaign, when he was stripped of his head of the department status and wasn't given new students for the last few years of his conservatory tenure.