Labadie is an unincorporated community in Franklin County, Missouri, United States. It is located about three miles north of Gray Summit. The community is named after Sylvester Labaddie, a hunter who (by some accounts) was killed by a bear in nearby Labaddie's Cave. A county history published in 1968, however, records that he "died peacefully in his bed in his 70th year, on July 25, 1849, at his home on Olive Street in St.