The Full Form of DS 160 is Department of State 160.

The DS-160, Online Nonimmigrant Visa Application form, is for temporary travel to the United States, and for K (fiancé(e)) visas. Form DS-160 is submitted electronically to the Department of State website via the Internet. Consular Officers use the information entered on the DS-160 to process the visa application and, combined with a personal interview, determine an applicant’s eligibility for a nonimmigrant visa.

Visa applicants must submit a completed DS-160, Online Nonimmigrant Visa Application for all nonimmigrant visa categories, including applicants applying for K visas. (Note:  For K visa cases in process at a U.S. Embassy or Consulate prior to October 7, 2013, review the limited exceptions explained in the FAQs below.)