<p>Quantifying the spatial correlation of ground-motion intensity measures (IMs) is a critical prerequisite for evaluating the seismic risk of spatially distributed infrastructure or portfolios. However, the spatial correlation shows strong regional dependence due to variations in source characteristics, path propagation, and site effects. Consequently, the development of a region-specific spatial correlation model is essential. New Zealand is located within a tectonically active region and experiences frequent seismic activity. This study develops the spatial correlation models for New Zealand using its updated ground-motion database. Based on the 1,839 recordings from 143 earthquakes, the proposed models can evaluate the spatial correlations of peak ground acceleration (<i>PGA</i>) and pseudo-spectral acceleration (<i>PSA</i>) at multiple periods (0.1, 0.2, 0.3, 0.5, 0.75, 1, 2, 3, 5, 7.5, and 10 s). An exponential model was used to fit the empirical semivariograms, and the resulting correlation ranges were compared with those reported in previous studies. The results indicate that the proposed correlation models exhibit pronounced regional features in New Zealand compared with those for other or global regions, with correlation ranges (11.34–47.02 km) approaching the median reported values. The models developed in this study are valuable for regional-scale seismic risk assessment in New Zealand.</p>