Oramo will dedicate his final years as music director of the CBSO to celebrations of Mozart's 250th birthday, the Shostakovich centennial, the Elgar and Sibelius anniversaries, the completion of the orchestra's complete Stravinsky cycle, and at least seven overseas tours.
"After 10 years at the helm I feel it is a good time to stand aside," Oramo said in a statement. "But I love the CBSO and am glad that I will be able to continue working closely with it as principal guest conductor."
The City of Birmingham Orchestra was founded in 1920 and was the first symphony orchestra in the UK to be funded by a local government. Noteworthy conductors in the orchestra's early history included Adrian Boult and Harold Gray. In 1980, a then 25-year-old Simon Rattle was appointed principal conductor, a position he held until 1998.
The company did not announce any potential successors for Oramo.