The Sapporo Symphony Chorus is a chrus specially founded in 2006 to honor the 45th anniversary of the Sapporo Symphony Orchestra, and will celebrate its 20th anniversary in 2026. Since their debut in December of the founding year in the performance of "Sakkyo Beethoven's Ninth Symphony in Kitara (Sakkyo the Ninth)," they have continued to perform at subscription concerts every year since 2007, in addition to the annual Ninth performances.

In 2007, the chorus appeared in Mahler's "Resurrection" by Tadaaki Odaka for the orchestra's 500th commemorative subscription concert. The chorus started to expand its repertoire by Britten's "Peter Grimes" (concert version-2008), Orff's "Carmina Burana" (2009), and in July of the same year, again, Mahler's "Resurrection" by Christoph Eschenbach and the PMF Orchestra. In 2010, in addition to Duruflé's "Requiem" and Mahler's Symphony No. 3 (women chorus), the chorus participated in summer performances for families and regional events, expanding its range of activities. By appearing in Dvořák's "Stabat Martel" with Radomil Eliška (2021), Beethoven's "Mass Solemnis" with Ken Takaseki (2012), Britten's "Requiem of War" (2013) and Verdi's "Requiem" (2014), both with Otaka, the chorus made its presence further established.
In 2015, the chorus joined in Mendelssohn's "Lobsang," for Max Pommer's inaugural subscription concert, and this performance was recorded and released as an CD. Since then, the choral expression deepened with Pommer, appearing in Debussy's "Nocturne" (women chorus), Mozart's "Requiem," J.S. Bach's "Christmas Oratorio," and "Johannes -Passion (St. John Passion). At the same time, the chorus collaborated with new conductors, including Holst's "Planets" (women chorus) with Junichi Hirokami and Fauré's "Requiem" by Matthias Bamert. The collaboration with Bamert continued even after the coronavirus pandemic; works on important vocal works such as Haydn's Mass in Time of War "Paukenmesse" (2022) and Brahms' "Deutsche Requiem" (2023). A rare opportunity was the premiere of Holliger's "Ardeur noire d'après" in Japan under the direction of the composer himself, which also assisted to expand the orchestra's repertoire.
In recent years, the chorus appeared in Bruckner's "Te Deum" by Toshiyuki Umeoka (2024), which was the first collaboration of the orchestra with Umeoka. In 2025, the chorus was on the stage of Mahler's "Resurrection" with the new Chief Conductor, Elias Grandy to celebrate his inauguration.
As the milestone of the 20th anniversary, the chorus is scheduled to perform in Mahler's Symphony No. 3 (women chorus) in May and Verdi's ”Requiem” in November.

After four renewal auditions plus additional auditions, there are currently 80 members enrolled, with chorusmaster and conductor, Isao Osanai; chorusmasters Shigeto Oshima and Toshiaki Nakahara.
(As of December 2025)