Carl V. Lachmund (27 March 1853 – 20 February 1928) was an American classical pianist, teacher, conductor, composer, and diarist. He was a student of Franz Liszt for three years, and his detailed diaries of his time with Liszt provide an invaluable insight into that composer’s teaching methods and some aspects of his character. He founded the in New York and ran it for 22 years, and he founded the , conducting it for 12 seasons.