Ullern Church is a cruciform, neo-Romanesque stone church located on the Holgerslyst estate in the Ullern borough of Oslo. It was completed in 1903, designed by architect Harald Bødtker, and serves as the parish church for the local congregation in the Vestre Aker deanery of the Diocese of Oslo. The church seats about 800 people and is dominated by a square central tower topped with a copper-covered hip roof. Inside, the choir apse features a fresco titled “The Ascension,” painted by Eilif Peterssen in 1908–1909; beneath it stands a marble baldachin — also designed by Bødtker — above the altar. Stained-glass windows (from 1915) and a baptismal font by Johs. Grønseth & Co. further decorate the interior. Adjacent to the church is Ullern kirkegård (the churchyard cemetery), which is the final resting place of several prominent Norwegian figures.