| Joachim IV | |
|---|---|
| Ecumenical Patriarch of Constantinople | |
| Church | Church of Constantinople |
| See | Derkes |
| Installed | 1 October 1884 |
| Term ended | 14 November 1886 |
| Predecessor | Joachim III |
| Successor | Dionysius V |
| Other posts | Metropolitan of Larisa |
| Personal details | |
| Birth name | Nikolaos Krousouloudis |
| Born | 5 July 1837 Kallimasia, Chios, Ottoman Empire |
| Died | 15 February 1887 (aged 52) Kallimasia, Chios, Ottoman Empire |
| Occupation | Ecumenical Patriarch |
| Alma mater | Theological School of Chalki |
Joachim IV was Ecumenical Patriarch of Constantinople from 1884 to 1887. He was born in 1830, in Kallimasia, Chios.