DFG may refer to:
Businesses Dollar Financial Group, United States Dongfeng Motor Group, a Chinese carmaker
Government California Department of Fish and Wildlife (formerly of Fish and Game), United States Deutsch-Französisches Gymnasium, any of five Franco-German international schools Disabled Facilities Grants, United Kingdom District Factor Group, a class of school district in New Jersey, US
Non-profit organisations Days for Girls, nonprofit sanitary protection provider German Research Foundation (), a funder German Peace Society ()
Other uses Deaf Frat Guy, a character from the Adam Carolla Show Difference-frequency generation, nonlinear optics frequency mixing