Scottish National League Division Four
| Sport | Rugby union |
|---|---|
| Founded | 1973 |
| No. of teams | 10 |
| Country | Scotland |
| Most recent champion | Strathmore |
| Level on pyramid | 5 |
| Promotion to | National League Division Three |
| Relegation to | Regional Leagues |
| Domestic cup | 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.