The 1941–42 season was the third Scottish football season in which Dumbarton competed in regional football during World War II.
The second season of the Scottish Southern League saw Dumbarton continue to improve their performances by finished 12th out of 16 with 26 points - 32 behind champions Rangers.
Boosted by player 'guest' appearances Dumbarton could just about compete on an equal footing with the 'bigger' clubs.
For the second successive season, Dumbarton failed to qualify from the sectional games.
In addition John Casey and Geoffrey Lockwood both played their last games in Dumbarton 'colours'.