Sequence data from the article: Complete circularized genome resources for Xylella fastidiosa subsp. sandyi strains CO33 and CFBP8478. In this study, we present the complete genome sequences of two strains of X. fastidiosa, which were isolated from intercepted Coffea arabica plants originating from Costa Rica in Italy (strain CO33) and France (strain CFBP8478). Both strains belong to the X. fastidiosa subsp. sandyi ST72. The taxonomic assignment at the subspecies level was determined through MLST analysis, using seven housekeeping genes (Yuan et al., 2010), as well as whole genome sequencing, which involved a combination of long and short read technologies.