In music, Op. 111 stands for Opus number 111. Compositions that are assigned this number include:

• Beethoven – Piano Sonata No. 32
• Brahms – String Quintet No. 2
• Dvořák – A Hero's Song
• Fauré – Fantaisie
• Prokofiev – Symphony No. 6
• Shostakovich – Novorossiysk Chimes

Op. 111 may also refer to:

• Dix pièces by Jean Absil; see List of compositions for guitar#1960s
• Piano Sonata No. 7 in E-flat major; see List of compositions by Isaac Albéniz#Works with opus numbers
• Flute Concerto No. 2, see List of compositions by Malcolm Arnold#Concerto
• Foxfire Overture for Symphonic Band, see James Barnes (composer)#Works for concert band
• From Olden Times, see List of compositions by Amy Beach#Keyboard
• "Impromptu". by Paul Bernard
• Suite; see List of compositions by York Bowen#Piano 4-hands
• Pot Pourri; see List of compositions by Ferdinando Carulli#Works With Opus Numbers
• Souvenirs Lointains, see List of compositions by Cécile Chaminade#Works with opus number
• Suite for saxophone quartet, see Paul Creston#Chamber music
• Zwei Romanzen für Klavier zu drei Händen, see List of compositions by Carl Czerny#By opus number
• Ariel for violin and piano; see František Drdla#Violin and piano
• 4 Klavierstücke, see Robert Fuchs (composer)#Solo
• Piano Suite in E, see Jack Gibbons#Solo piano
• Morceaux de Ballet, see Stephen Heller#Works
• Grande fantaisie sur la Romanesca, fameux air de danse du XVIe siècle, see List of compositions by Henri Herz#Piano Solo
• Symphonietta in D major for wind and brass, The Sleeper; see List of compositions by Joseph Holbrooke#Other
• Pastorale No. 1; see List of compositions by Alan Hovhaness
• Mass No. 3 for Soloists, Chorus, and Orchestra in D major, see List of compositions by Johann Nepomuk Hummel#By opus numbers
• "Gingerbread Man", see List of compositions by Nikolai Kapustin
• What Price Confidence?, a 1944 opera by Ernst Krenek
• Lieder aus alter Zeit, see Theodor Kullak#Piano Solo
• La Chasse, see List of compositions by Henry Litolff#Piano solo
• Fantasia apocaliptica, see Erkki Melartin#Piano
• Sinfonia da requiem, see Krzysztof Meyer#Works for orchestra
• 4 Grandes Etudes de Concert, see List of compositions by Ignaz Moscheles#Works with Opus Number
• Te Deum for soprano, bass, mixed choir and orchestra, see Pehr Henrik Nordgren#Choral
• Ballade, see Dianne Goolkasian Rahbee#Piano
• Organ Sonata No. 5 in F-sharp Minor by Josef Rheinberger (unofficial numbering); see 1878 in music
• Das Lied von der Glocke by Andreas Romberg, see Song of the Bell#Recitations and musical settings
• 3 Fantasiestücke by Robert Schumann
• Intrada, Op. 111a or Surusoitto, Op. 111b; see List of compositions by Jean Sibelius#Organ
• 3 Part-Songs, for SATB; see List of compositions by Charles Villiers Stanford#Miscellaneous
• Indianer-Galopp; see Johann Strauss I#Galops and polkas
• Blumenfest; see List of compositions by Johann Strauss II#Polkas
• Divertimento Piccolo, see José Carlos Amaral Vieira#List of compositions
• Pozdravlyayem!, a 1975 opera by Mieczysław Weinberg

See also

• Opus 111, an imprint of Naïve Records