Sydney University Oval No.1 is a historic sports venue located in the suburb of Camperdown in Sydney, Australia. 

The oval was originally built in 1854 as a cricket ground and was later used for Australian rules football. The oval has undergone several renovations and upgrades over the years, including the construction of a grandstand in 1885, which was later replaced in 1913.

Today, Oval One remains an important sports venue in Sydney, hosting local and national sporting events, including AFL Sydney fixtures. It is also recognized as a heritage site by the National Trust of Australia, due to its significant historical and cultural value.