BT National League Division 1
| Formerly | National League, Premiership Division Two |
|---|---|
| Sport | Rugby union |
| Founded | 1973 |
| No. of teams | 12 |
| Country |
 Scotland
|
| Most recent champion(s) |
Edinburgh Academicals (3rd title) |
| Most titles | Stirling County (5 titles) |
| Level on pyramid | 2 |
| Promotion to | Premiership |
| Relegation to | National League Division Two |
The Scottish National League Division One (known as BT National League Division 1 for sponsorship reasons) is the second tier of the Scottish League Championship for amateur rugby union clubs in Scotland.
The division was established in its current format in 2014, with the creation of three national leagues below the Premiership.
The winners are promoted to the Scottish Premiership, with the runners-up entering a play-off at a neutral venue against the 9th-placed team in the Premiership. The bottom two teams are relegated to Scottish National League Division Two.
Promoted from 2016–17 Scottish National League Division Two
Relegated from 2016–17 Scottish Premiership
Details: [1]
Winners of the second tier competition – includes Division Two (1973–1995), Premiership Division Two (1996-2012), National League (2013–2014) and National League Division One (2015–)
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