The 1919-20 Lower Ottawa Valley League championship was won by Aylmer. Aylmer also won the Ottawa Citizen Shield by defeating the Upper Ottawa Valley League champion Pembroke Arenas 11 goals to 5 (4-4, 7-1) in a two game total goal series. Aylmer chose not to participate in the 1919-20 Ottawa District Senior Playoffs. No further information available for teams or standings.