DF or df may refer to:
DFS ("DFS Group") is a Hong Kong-based travel retailer of luxury products. Established in 1960, its network consists of duty-free stores located in 11 major airports and 20 downtown Galleria stores, as well as resort locations worldwide.
DFA Records is an American independent record label founded in 2001 by Mo' Wax co-founder Tim Goldsworthy, musician James Murphy, and manager Jonathan Galkin.
DFW Tornados (also known as Dallas–Fort Worth Tornados) was an American soccer team based in Dallas, Texas, United States.
In automata theory (a branch of theoretical computer science), DFA minimization is the task of transforming a given deterministic finite automaton (DFA) into an equivalent DFA that has a minimum number of states.
The DF-ZF is a Chinese hypersonic glide vehicle (HGV), previously denoted by the Pentagon as WU-14 and currently officially operational on October 1st, 2019, in the 70th anniversary of the People's Republic of China.