The 1944-45 Lower Ottawa Valley League champion was Buckingham. They won the 1944-45 Ottawa District Senior Playoffs, but due to World War II there was no 1944-45 Allan Cup playoffs. They defeated Hull Intermediate League champion, Hull in the quarterfinal round (no scores are available). They defeated independent entry Maxville 10 goals to 2 (5-1, 5-1)in a 2 games total goals series in the semi-final round. They defeated Rideau Group champion, Smiths Falls MicMacs in the Intermediate final, two games to none (14-6, 8-7). They defeated Ottawa City Senior League champion Hull Volants in the Senior-Intermediate final 15 goals to 11 (9-4, 5-7) in a 2 games total goals series.