DSU

• {{lang|da|Danmarks Socialdemokratiske Ungdom}} (Social Democratic Youth of Denmark)
• Directorate of special units, the police tactical unit of the Belgian Federal Police
• German Social Union (East Germany) ({{lang|de|Deutsche Soziale Union}}), from 1990
• Dansk Skytte Union, a Danish association for sport shooting
• Demobilised Soldiers' Union, a political party in Estonia
• Direct Source Unit, a sub-division of UK police forces dedicated to handling covert assets.

• Dagestan State University, a public university in Makhachkala, Republic of Dagestan
• Dakota State University, a public university in Madison, South Dakota
• Dayananda Sagar University, a state private research university in Bengaluru, Karnataka
• Delaware State University, a public historically black university in Dover, Delaware
• Delta State University, a public university in Cleveland, Mississippi
• DeSales University, a private Catholic university in Center Valley, Pennsylvania
• DHA Suffa University, a private university run by the Pakistan Army
• Dickinson State University, a public university in Dickinson, North Dakota
• Distance State University, public university in the Republic of Costa Rica
• Dixie State University, now renamed Utah Tech University, a public university in St. George, Utah
• Dong Seoul University, a private technical college in Seongnam, South Korea

• Dalhousie Student Union, representative of students at Dalhousie University
• Durham Students' Union, the students' union of Durham University
• Dutch Student Union, a national students' union of the Netherlands

• Data service unit, a WAN equivalent of a network interface card
• Decorate-sort-undecorate, a computer science programming idiom
• Disjoint-set data structure, a data structure used to track disjoint sets
• Distress signal unit, used by firefighters
• Dynamic software updating, upgrading programs while they are running

• DSU (album), by Alex G (2014)
• Dispute Settlement Understanding, in the World Trade Organization

{{disambiguation}}