2019–20 Welsh Alliance League

The 2019–20 Welsh Alliance League, known as the Lock Stock Welsh Alliance League for sponsorship reasons, was the 36th, and final season of the Welsh Alliance League, which consisted of two divisions: the third and fourth levels of the Welsh football pyramid. There are sixteen teams in Division 1 and fifteen teams in Division 2, with the champions of Division 1 promoted to the Cymru North and the bottom two relegated to Division 2. In Division 2, the champions and the top two runners-up will be promoted to the newly formed FAW League One. The season commenced on 9 August 2019.

2019–20 Welsh Alliance League

The 2019–20 Welsh Alliance League, known as the Lock Stock Welsh Alliance League for sponsorship reasons, was the 36th, and final season of the Welsh Alliance League, which consisted of two divisions: the third and fourth levels of the Welsh football pyramid. There are sixteen teams in Division 1 and fifteen teams in Division 2, with the champions of Division 1 promoted to the Cymru North and the bottom two relegated to Division 2. In Division 2, the champions and the top two runners-up will be promoted to the newly formed FAW League One. The season commenced on 9 August 2019.