| Act of Parliament | |
 | |
| Long title | An Act to provide for the better Government of Ireland. |
|---|---|
| Citation | 10 & 11 Geo. 5 c. 67 |
| Dates | |
| Royal assent | 23 December 1920 |
Status: Repealed | |
The Government of Ireland Act 1920 (10 & 11 Geo. 5 c. 67) was an Act passed by the Parliament of the United Kingdom to create two separate parliaments in Ireland: the Parliament of Northern Ireland and the Parliament of Southern Ireland. The Fifth Schedule to this act provided the constituencies for the House of Commons in these two separate parliaments. These same constituencies also replaced those provided in the Redistribution of Seats (Ireland) Act 1918 for representation of Ireland in the House of Commons of the United Kingdom at Westminster. Sinn Féin used these constituencies to elect the Second Dáil (1921–22) and those constituencies in Southern Ireland were used to elect the Third Dáil (1922–23).