Capnocytophaga species are part of the normal human oral bacterial flora.They are recognized as opportunistic pathogens leading to various extra-oral infections including septicemia, osteomyelitis, abscesses and keratitis and they have been rarely reported as a cause of chorioamionitis and neonatal infection. We here report the first two cases of chorioamionitis produced by Capnocytophaga sputigena and the recently described C. leadbetteri in Belgium. Both isolates were correctly identified at the genus level, in the first 24 hours of incubation by MALDI-TOF.