In music, Op. 110 stands for Opus number 110. Compositions that are assigned this number include:
Beethoven – Piano Sonata No. 31 Dvořák – The Wild Dove Mendelssohn – Piano Sextet Prokofiev – Waltz Suite Reger – Geistliche Gesänge, Op. 110 Schumann – Piano Trio No. 3 Shostakovich – String Quartet No. 8 Sibelius – Väinämöinen's Song (), cantata for mixed choir and orchestra (1926)