Dorset Opera Festival is an annual country house opera festival combining professional soloists with a summer-school chorus, which takes place at Bryanston near Blandford Forum in Dorset, England.

Operas are staged at the conclusion of a two-week summer school focused on the 18–25 age group, based at Bryanston School. It attracts performers from around Europe. Founded as Dorset Opera by Patrick Shelley at Sherborne School in 1974, it moved to Bryanston in 2005, when Roderick Kennedy became its artistic director, and it became Dorset Opera Festival in 2011. Operas are staged in The Coade Hall theatre at the school, and touring productions are also staged elsewhere.

Recent productions below:

2011: Puccini's Tosca and Verdi's Otello

2012: Verdi's Il trovatore, Puccini's Suor Angelica, and Le Carrosse du Saint-Sacrament by Lord Berners.

2013: La traviata, directed by Jonathan Miller, Wagner's The Flying Dutchman and a reduced version of La bohème staged by Dutch National Touring Opera.

2014: Verdi's Aida and Beethoven's only opera, Fidelio

2015: Verdi's Un Ballo in Maschera and Donizetti's L'elisir d'amore