In music, Op. 105 stands for Opus number 105. Compositions that are assigned this number include:
Dvořák – String Quartet No. 14 Mendelssohn – Piano Sonata No. 2 Schumann – Violin Sonata No. 1 Shostakovich – Moscow, Cheryomushki Sibelius – Symphony No. 7 in C major (1924, in one movement) Weinberg – The Madonna and the Soldier