Filo (or phyllo) ( "leaf") is a very thin unleavened dough used for making pastries such as baklava and börek in Middle Eastern and Balkan cuisines. Filo-based pastries are made by layering many sheets of filo brushed with olive oil; the pastry is then baked.

LIFO, an acronym for "Last In First Out", may refer to:

• FIFO and LIFO accounting, in accounting
• In computing, a Stack (abstract data type), also called a LIFO queue
• LIFO (education) a layoff policy