Hawkmoths are among the most popular insects but have received little attention in the Philippines over the last two decades. This study took advantage of the photographic records of hawkmoths available on two online social network platforms: iNaturalist and Philippine Lepidoptera. From these data sources, we created a preliminary species checklist and defined the species composition of hawkmoths in Baguio City, Philippines. We recorded a total of 275 observations made between January 2014–August 2021, from which 35 species and subspecies were identified. Nine (25.71%) of these are Philippine endemics. The community composition of hawkmoths in the city was composed generally of common species, observed mostly during the wet season. This study demonstrates the potential of publicly available photo-supported observations of hawkmoths as a valuable source to obtain data in support of basic lepidopterological studies and, hence, improve the dearth of information regarding Philippine hawkmoths.