The Duquesne Spy Ring is the largest espionage case in United States history that ended in convictions.
Duquesne University of the Holy Spirit (/djuːˈkeɪn/) is a private Catholic university in Pittsburgh, Pennsylvania, United States.
dBase (also stylized dBASE) was one of the first database management systems for microcomputers, and the most successful in its day.
DBS Bank Ltd is a Singaporean multinational banking and financial services corporation headquartered in Marina Bay, Singapore.
DB Cargo UK, formerly DB Schenker Rail UK and English, Welsh & Scottish Railway, is a British rail freight company headquartered in Doncaster, England.
DB Class V 200.0 (from 1968: Class 220) was the first series production diesel-hydraulic express locomotive of the German Deutsche Bundesbahn and - as Am 4/4 - of the SBB-CFF-FFS in Switzerland.
Daqin (Chinese: 大秦; pinyin: Dàqín; Wade–Giles: Ta4-ch'in2; alternative transliterations include Tachin, Tai-Ch'in) is the ancient Chinese name for the Roman Empire or, depending on context, the Near East, especially Syria.
Duquesne City School District is a tiny, suburban public school district in the state of Pennsylvania.
Daqing (Chinese: 大庆; pinyin: Dàqìng; formerly romanized as Taching) is a prefecture-level city in the west of Heilongjiang province, People's Republic of China.