DFG

• Dollar Financial Group, United States
• Dongfeng Motor Group, a Chinese carmaker

• 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

• Days for Girls, nonprofit sanitary protection provider
• German Research Foundation ({{langx|de|links=no|Deutsche Forschungsgemeinschaft}}), a funder
• German Peace Society ({{langx|de|links=no|Deutsche Friedensgesellschaft}})

• Deaf Frat Guy, a character from the Adam Carolla Show
• Difference-frequency generation, nonlinear optics frequency mixing

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