Lascassas is an unincorporated community in Rutherford County, Tennessee, near the city of Murfreesboro. Its geographic coordinates are 35°55'49"N, 86°17'28"W. The ZIP Code for Lascassas is 37085. The community's namesake is Bartolomé de las Casas, a Spanish missionary on Christopher Columbus's third expedition who was known as the "Apostle of the Indians" in recognition of his efforts to protect the native population from slavery and abuse.