Cryptosporidium spp. is a parasite that causes gastroenteritis in humans and is associated with waterborne and foodborne outbreaks. The international nomenclature for discrimination of Cryptosporidium isolates is based on sequence polymorphisms in the highly variable gp60 gene. In 2025, the number of human cases of cryptosporidiosis caused by infection with Cryptosporidium parvum gp60 genotype IIdA24G1 in France increased significantly and prompted public health authorities to investigate. During January through September 2025, 166 cases of infections with C. parvum genotype IIdA24G1 were identified, compared to less than 20 annual cases for previous years. To add further discrimination to gp60 sequencing, multi-locus variable number tandem repeat analysis (MLVA) was performed by the National Reference Center and revealed two large distinct profiles. The national public health agency interviewed patients associated with each MLVA profile about water exposure and food consumption to identify sources of contamination. Food safety authorities obtained store loyalty card purchase information, performed food product traceback, and communicated with producers. Epidemiological investigations revealed high consumption of goat milk cheese for the first profile (17 of 23 cases interviewed) and pre-packaged lamb's lettuce for the second profile (19 of 21 cases interviewed). Product traceback identified food product origins, producers were notified and preventive measures were recommended. MLVA typing provided further granularity within a C. parvum IIdA24G1 genotype, which facilitated outbreak investigation and source identification. Cryptosporidium-specific monitoring and preventive hygienic measures should be considered for unpasteurized milk products and fresh produce.