St. Laurentius, Roman Catholic parish church in Oberdollendorf, Königswinter, Germany

St. Laurentius is a Roman Catholic parish church in Oberdollendorf, a district of Königswinter. It combines a three-storey Romanesque choir tower from the early 13th century with a plain hall church completed in 1792 and post-war extensions. The tower's lower storey, the St. Sebastianus Chapel, has a cross-ribbed vault, and the unplastered walls rest on a base of greywacke rubble.

The church was built in Romanesque style with its tower dating to the 13th century, while the main structure was rebuilt in later periods. After falling into neglect and being closed in the late 1700s, a new simple building was constructed in 1792 next to the original tower.

The parish belonged to the Vilich convent from 1144, and the church is dedicated to Saint Lawrence, venerated in Germany since the 10th century. In the former churchyard, gravestones and crosses of trachyte from the 17th and 18th centuries survive, some with reliefs. A mission cross from 1858 stands before the western extension.

The church stands on the edge of Oberdollendorf's centre, not in Königswinter's centre, at the corner of Heisterbacher Straße and Rennenbergstraße, at 77.81 m above sea level. The main entrance was moved to the south side in 1949/50. The former churchyard around the church holds gravestones, and the parish cemetery has been outside the village since 1852.

The former churchyard, redesigned before 1988, keeps gravestones and crosses mainly carved from trachyte, several from the 17th and 18th centuries with reliefs. Near the west extension stands a mission cross dated 1858, and by the north side a trachyte wayside cross without inscription or corpus. The tower's lower floor is a self-contained cross-vaulted chapel dedicated to St. Sebastian.