WFF

WFF may refer to:


 * Wallops Flight Facility, a NASA facility
 * Well-formed formula, in logic, linguistics, and computer science, a symbol or string of symbols that is generated by the formal grammar of a formal language
 * Montreal World Film Festival
 * Woodhull Freedom Foundation & Federation, a nonprofit created "to affirm sexual freedom as a fundamental human right"
 * World's Funniest Fails, a U.S. TV series
 * World Fitness Federation