Queensland Theatre has unveiled a record-setting 2019 season filled with world-premiere performances, Queensland-exclusive shows and Australia's newest theatre.

It is the country's fastest-growing theatre company, according to the number of season ticket holders, and will also celebrate its 50th birthday next year.

Queensland Theatre will mark its 50th anniversary next year with its biggest season yet. Credit:Tim Jones Photography

Queensland Theatre artistic director Sam Strong said the season would feature a record five world premieres, a record number of interstate performances, state exclusives and the reopening of the Bille Brown Studio as the Bille Brown Theatre after a $5.5-million renovation to become Australia's newest theatre.

The company's world exclusive performances start with Hydra, from award-winning playwright Sue Smith, and is followed by City of Gold, which Mr Strong hailed as "the most provocative play to come to Australia in 25 years".