1, The full form of DIN is Do It Now. It’s used on Miscellaneous ,Chat slang in Worldwide

DIN means DO It Now

2, The full form of DIN is Director Identification Number. It’s used on Governmental ,Rules & Regulations in India

Director Identification Number (DIN) is an 8-digit unique identification number allotted by the Central Government to individuals who intend to become a director or who already is a director of a company in India.

3, The full form of DIN is Deutsches Institut für Normung,[German Institute for Standardization]. It’s used on Technology ,Specifications & Standards in Germany

German Institute for Standardization (German: Deutsches Institut für Normung, DIN) is Germany’s national standards organization. DIN is headquartered in Berlin, Germany. DIN develops standards and specifications covering nearly every field of technology.

4, The full form of DIN is Drug Identification Number. It’s used on Medical ,Medicines & Drugs in Canada

Drug Identification Number (DIN) is a computer-generated eight-digit number assigned by Health Canada to a drug product prior to being marketed in Canada. It uniquely identifies all drug products sold in a dosage form in Canada and is located on the label of prescription and over-the-counter drug products that have been evaluated and authorized for sale in Canada.
A DIN uniquely identifies the following product characteristics: manufacturer; product name; active ingredient(s); strength(s) of active ingredient(s); pharmaceutical form; route of administration.

5, The full form of DIN is Document Identification Number. It’s used on Governmental ,Rules & Regulations in India

Document Identification Number (DIN) is a unique identification number that the income tax department has introduced for taxpayers in India. It is used for making communication with the Income Tax (IT) department in India.