Evangelical Union can refer to:
- Evangelical Union (Scotland), a religious phenomenon in Scotland
- Protestant Union, a coalition of Protestant German states in the 17th century
- A union between Lutheran and Reformed Churches, e.g. Prussian Union
University unions
- A Christian Campus groups affiliated with Inter Collegiate Prayer Fellowship, which is spread across 19 countries
- A campus Christian group affiliated with Campus Crusade for Christ, the largest evangelical organization in the United States, according to USA Today
- The Sydney University Evangelical Union A University Christian group with the University of Sydney, affiliated with the Australian Fellowship of Evangelical Students