Across the world, Leoncia (Leoncia 
) is a common female first name. The first name Leoncia is habitual in Philippines, where it is quite a common feminine name, Nicaragua, and Peru, where it is quite a rare female name. Measured by absolute frequency, it is commonest in Philippines, Peru, and the Democratic Republic of the Congo. Very seldom, Leoncia is the last name as well as the forename.
Cruz, Sanchez, Soriano, Alvarez, Aguirre, Ramirez, Rosales, Delgado, Herrera, Vasquez, Martinez, Castillo, Bautista, Gonzalez, Gonzales, Espinoza, Rodriguez, Dela Cruz, Gutierrez, Tolentino, Hernandez, Fernandez, Mendoza, Mercado, Morales, Quispe, Diaz, Silva, Perez, Ramos, Rojas, Reyes, Duran, Gomez, Lopez, Manalo, De La Cruz, Mendez, Santos, Aquino, Chavez, Castro, Romero, Rivera, Garcia, Torres, Vargas, Flores, Medina, and Villanueva