St Denis Church, Joondanna, Catholic church in Joondanna, Australia

St Denis Church is a Roman Catholic church on Osborne Street in Joondanna, designed by Ernest and Iris Rossen and inspired by the Chapel of Ronchamp. Built in 1967 and consecrated in 1968, it has a pipe organ originally made in 1957 for the chapel of St John of God Subiaco Hospital, moved here after that chapel was demolished in 1994.

The parish of St Denis was created in 1952 by Archbishop Redmond Prendiville, who separated it from the larger parish of Osborne Park and entrusted it to the Servite Order, recently arrived in Australia. Its first parish priest was Patrick Nolan, and its first church was a Nissen hut on Wanneroo Road, consecrated the previous year, which also served as a school. In 1964 Christopher Ross replaced Nolan and decided a proper church was needed; the new building was designed by Ernest and Iris Rossen, built in 1967 and consecrated in 1968.

The parish is named after Saint Denis, a third-century Christian martyr. Since 2017 a memorial garden has stood on the west side, between the church and the presbytery, and the 2010-11 renovation added a gathering space in place of the crying room.

The church stands on Osborne Street in Joondanna, with the memorial garden built in 2017 on its west side between the church and the presbytery. The 2010-11 renovation added indoor toilets, reverse-cycle air-conditioning and a sound system with hearing units for the hard-of-hearing. Check Mass times before visiting, since the building is not kept open all day.

Architects Ernest and Iris Rossen designed the building with inspiration drawn from the Chapel of Ronchamp in France. This connection to a notable European work of architecture sets it apart in the local landscape.