Zapallo is a term used in certain countries of South America to refer to the winter squash species Cucurbita moschata. While it is not a geographical location, the name identifies a specific type of produce common in various regional cuisines.
In an English-language context, this variety is often associated with the West Indian pumpkin, which is typically cultivated in tropical America, the Philippines, and the West Indies. Other regional names for Cucurbita moschata include ahuyama in Colombia, Venezuela, and the Dominican Republic; ayote in Central America; and calabaza in Mexico and Cuba.