Holy Rosary Cathedral, Roman Catholic cathedral in Semarang City, Indonesia

The Holy Rosary Cathedral stands on Jl. Pandanaran in Randusari, Semarang, near Tugu Muda. It rests on a stone foundation and has a rectangular plan with a large, column-free congregation hall. Roofs and arches carry parapets, and doors face north, west and south, with the facade to the west.

The building was completed in 1927 and originally served as a parish church for the city's growing Catholic population. It became a cathedral in 1940 when Albertus Soegijapranata was appointed as Semarang's first archbishop.

The cathedral is the main church for Semarang's Catholic community and is used for regular worship, feasts, and celebrations. It sits in a city where most residents are Muslim, making it a visible and active center of Christian life.

The cathedral sits close to the Tugu Muda monument and is easy to reach on foot from central Semarang. Visitors should dress with covered shoulders and knees, and check whether a service is in progress before entering.

In early 1942, when Japanese forces in Semarang ordered vicar Albertus Soegijapranata to hand over the church, he refused, saying they could take the cathedral only after removing his head, and pointed them toward nearby cinemas instead. The Japanese let him keep both the cathedral and his head.