St. Catherine's Church, Church building in Hoogstraten, Belgium

St. Catherine's Church is a late Gothic church of red Kempen brick with bands of white sandstone, built between 1525 and 1550 to plans by Rombout II Keldermans. Its square tower rises 104.7 metres, passing from a square shaft into an octagonal belfry crowned by a double pear-shaped spire covered in slate. The church has a three-aisled nave and a high choir that survived the 1944 explosion.

Construction began on 18 November 1525 for Count Antoon van Lalaing and Countess Elisabeth van Culemborg, to a design by Rombout II Keldermans, on the site of an older Romanesque church rebuilt after a 1442 fire. The church was consecrated in 1544 and the tower finished in 1546. On 23 October 1944 retreating German troops dynamited the tower, which fell and destroyed the nave and neighbouring town hall; only the choir, part of the transept and the nave columns survived. Rebuilding under architects Jozef-Louis Stynen and Pol Berger was completed on 1 June 1958.

The church is popularly called "our Katrien" and "Cathedral of the Kempen". Its stained glass windows, donated by nobility, depicted Charles V, Isabella of Portugal, Margaret of Austria and the founding couple; most were stored in a crypt in 1941 and replaced in 1952.

The tower has leaned away from the nave since 2009, with cracks visible inside and out, and a net protects visitors from falling brick and sandstone. The church is a protected monument; access to the tower is not part of a standard visit.

The tower was dynamited by retreating German troops on 23 October 1944, who feared it would serve as a lookout for the Allies. The falling tower destroyed the nave and the adjacent town hall. Rebuilding under architects Jozef-Louis Stynen and Pol Berger finished on 1 June 1958, so the tower seen today is a postwar reconstruction.