| Flag | Common Name | Formal Name | Krause Name | Wikipedia Name | Dates | Coins |
|---|---|---|---|---|---|---|
| Yemen | (2 countries) | 1967 - Present | 0 | |||
|
Yemen1 | People's Democratic Republic of Yemen | Yemen / Democratic Republic Of | South Yemen | 1967 - 1990 | 0 |
|
Yemen2 | Republic of Yemen | Yemen Republic | Yemen | 1990 - Present | 0 |
| Yugoslavia | (3 countries) | 1943 - 2006 | 2 | |||
|
Yugoslavia1 | Socialist Federal Republic of Yugoslavia | Yugoslavia | Socialist Federal Republic of Yugoslavia | 1943 - 1992 | 2 |
|
Yugoslavia2 | Federal Republic of Yugoslavia | Yugoslavia | Serbia and Montenegro | 1992 - 2003 | 0 |
|
Yugoslavia3 | State Union of Serbia and Montenegro | Yugoslavia | Serbia and Montenegro | 2003 - 2006 | 0 |