LFG

LFG may refer to:
 * Landfill gas, a waste gas containing methane and other gases emitted by landfills
 * Lexical functional grammar, a theory of syntax
 * Lagged Fibonacci generator, an example of a pseudorandom number generator
 * "Looking for group", a phrase often used in MMORPGs such as World of Warcraft
 * Looking for Group, a fantasy-based webcomic
 * Luft-Fahrzeug-Gesellschaft, a German aircraft manufacturer of World War I, known primarily for their "Roland" designs
 * LandAmerica Financial Group (NYSE: LFG), a Fortune 500 company that provides title insurance and other real estate transaction services
 * Lycée Français de Gavà Bon Soleil
 * LFG (film), 2021 American documentary film