| John IV, Duke of Mecklenburg | |
|---|---|
 | |
| Born | before 1370 |
| Died | 16 October 1422 Schwerin |
| Spouse | Jutta von Hoya Catherine of Saxe-Lauenburg |
| Father | Magnus I, Duke of Mecklenburg |
| Mother | Elisabeth of Pomerania-Wolgast |
John IV, Duke of Mecklenburg (before 1370 – 16 October 1422) was sole ruler of the Duchy of Mecklenburg from 1384 to 1395 and co-regent from 1395 to 1422.