| Sport | Rugby union |
|---|---|
| Founded | 1973 |
| No. of teams | 10 |
| Country |  Scotland |
| Most recent champion(s) | Strathmore |
| Level on pyramid | 5 |
| Promotion to | National League Division Three |
| Relegation to | Regional Leagues |
| Domestic cup(s) | National League Cup |
The Scottish National League Division Four (known as Arnold Clark National League Division 4 for sponsorship reasons) is the fifth tier of the Scottish League Championship for amateur rugby union clubs in Scotland.
The division was introduced first by a play-off for entry in season 2022–23. [1]
Then the division started full operation for the 2023–24 season. [2]
There were ten sides in the division. [3]
The top team is promoted to National League Division Three and the bottom three teams relegated to the Regional Leagues structure, making room for the West champion, the East champion and the Caledonia champion from the regional leagues.
| Location of teams in 2025–26 Scottish National League Division Four  Location of teams in 2025–26 Scottish National League Division Four |
Winners of the fifth tier competition – includes National League Division Two (–2011), and National League Division Four (2024–present)
National League Division 2
2012–2023 no national fifth tier
National League Division 4
