In music, Op. 88 stands for Opus number 88. Compositions that are assigned this number include:
Brahms – String Quintet No. 1 Bruch – Concerto for Clarinet, Viola, and Orchestra Bruch – Concerto for Two Pianos and Orchestra Dvořák – Symphony No. 8 Elgar/Payne – Symphony No. 3 Schumann – Fantasiestücke for piano trio