| Flag |
Date |
Use |
Description |
 |
1649 – 1651
|
Naval ensign of the Commonwealth of England, Scotland and Ireland, represents the subsequent Cromwellian conquest of Ireland |
The "arms of England", a red cross on a white field, and the "arms of Ireland", a gold harp on a blue field |
 |
1658 – 1660
|
Protectorate naval ensign of the Commonwealth of England, Scotland and Ireland, represents the Cromwellian conquest of Ireland |
The 1606 Union Jack surmounted by an escutcheon with a golden harp on a blue field |
 |
1782 - 1922
|
Saint Patrick's Flag, flag of the Order of St. Patrick, also an informal flag of Ireland |
A red saltire on a white field |
 |
1798
|
United Irish battle standard carried at Arklow, during 1798 rebellion |
White Cross and slogan on dark green background |
 |
1801 - 1922
|
Flag of the United Kingdom of Great Britain and Ireland |
The Union Flag, the flags of England, Scotland and St Patrick's Flag superimposed. |
 |
1801 - 1922
|
Historical flag of the Lord Lieutenant of Ireland |
A Union Flag surmounted by a golden harp on a blue field |
 |
NA |
The Green Ensign |
An unofficial merchant navy flag consisting of green field with golden harp and the Union Flag in the canton, no record of its actual use. |
 |
1916
|
Flag used by Irish Volunteers and Irish Citizen Army during the Easter Rising. |
 |
1916 - 1930s
|
The starry plough banner originally used by the Irish Citizen Army |
Green background with gold plough and white stars |
 |
1930s -
|
The starry plough flag that succeeded the starry plough banner |
Light blue background and white stars |
 |
1893 -
|
The Sunburst flag based on the flag of the mythological warriors the fenians. |
Blue background with a red showing partially in the bottom right corner. |
 |
Late 20th century
|
Unofficial Flag of the Ulster Nation |
Proposed by Ulster nationalists. |
 |
?
|
Flag used at times by the Ireland rugby team |
Green shamrock on a white background. |
