A filhó is a traditional pastry in Portugal and Northeastern Brazil.
Filhós are usually made by forming balls from a mixture of flour and eggs. When the dough has risen, the balls are deep-fried and sprinkled with a mixture of sugar and cinnamon. This is a traditional Christmas bake in Portugal, although it is now commercialised throughout the year. Although there is not a specific place of origin, this sweet has strong roots in the inland regions of central Northern Portugal.
The Portuguese word filhó originates from the Latin word , the plural form of , which is in turn a diminutive of (); thus, it is cognate with the English word folio but not the similarly-spelled Portuguese word (), which comes from Latin (also ).