Holy Cross Church, Medieval church complex in Ronneby Municipality, Sweden.

Holy Cross Church is a white-rendered stone building with steep orange tiled roofs, a long nave, a lower porch, and a square west tower with a pyramidal roof. Inside, the nave has pointed Gothic rib vaults with painted foliate borders, dark wooden pews, a brass chandelier, and an altar with a painted altarpiece in carved wood.

The oldest parts, the nave and half the chancel, come from a Romanesque apse church built in the late 12th century of split grey stone. In the first half of the 13th century the north and south transepts were added, and in the 14th century rib vaults and a straight-ended chancel gave the church its Gothic form. The brick west tower followed at the end of the 15th century; Swedish troops sacked the church on 4 September 1564.

The church keeps its medieval name Heliga Kors, Holy Cross. Inside, more than twenty carved gravestones from the 1600s and 1700s lie in the floor, including that of the merchant Abraham Bladh and his wife Cristina, who died in 1717. The epitaph of 1651 for the lawman Caspar Petersson Schow carries the Hebrew name JHWH in a sun symbol.

The church holds regular religious services, so it is best to check times before visiting to avoid conflicts with worship activities. The cemetery grounds are accessible, and entry is generally free, though visitors should be respectful of the sacred nature of the space.

The church remains connected to the Diocese of Lund, one of Sweden's oldest dioceses, which reflects early Danish influence in the southern part of the country. This connection preserves a memory of a time when political boundaries were drawn very differently than they are today.