Venice Biennale of Architecture is an international exhibition of architecture from nations around the world, held in Venice, Italy, every other year. It was held on even years until 2018, but 2020 was postponed to 2021 due to the COVID-19 pandemic shifting the calendar to uneven years. It is the architecture section under the overall Venice Biennale and was officially established in 1980, even though architecture had been a part of the Venice Art Biennale since 1968.

The Venice Biennale is an international cultural exhibition hosted annually in Venice, Italy by the Biennale Foundation. The biennale has been organised every year since 1895, which makes it the oldest of its kind. The main exhibition held in Castello, in the halls of the Arsenale and Biennale Gardens, alternates between art and architecture. The other events hosted by the Foundation—spanning theatre, music, and dance—are held annually in various parts of Venice, whereas the Venice Film Festival takes place at the Lido.