| Club: | Dumbarton |
| Season: | 1928–1929 |
| Manager: | Donald Colman |
| Stadium: | Boghead Park, Dumbarton |
| League: | Scottish League Division Two |
| League Result: | 14th |
| Cup1: | Scottish Cup |
| Cup1 Result: | Third Round |
| League Topscorer: | Johnny Haddow (11) |
| Season Topscorer: | Johnny Haddow (12) |
| Pattern B1: | _amber_stripes |
| Pattern La1: | _blacklower |
| Pattern Ra1: | _blacklower |
| Pattern So1: | _2 gold stripes |
| Leftarm1: | FFD700 |
| Body1: | 000000 |
| Rightarm1: | FFD700 |
| Shorts1: | FFFFFF |
| Socks1: | 000000 |
| Pattern B2: | _amber_stripes |
| Pattern La2: | _blacklower |
| Pattern Ra2: | _blacklower |
| Pattern So2: | _2 gold stripes |
| Leftarm2: | FFD700 |
| Body2: | 000000 |
| Rightarm2: | FFD700 |
| Shorts2: | 000000 |
| Socks2: | 000000 |
| Prevseason: | 1927–28 |
| Nextseason: | 1929–30 |
The 1928–29 season was the 52nd Scottish football season in which Dumbarton competed at national level, entering the Scottish Football League and the Scottish Cup. In addition Dumbarton played in the Dumbartonshire Cup.
See main article: 1928–29 Scottish Football League. With just two wins from their first 11 league games, Dumbarton's hopes for promotion in their seventh successive season in the Second Division was never going to be a real possibility. In the end Dumbarton finished 14th out of 19, with 31 points - 20 behind champions Dundee United.[1]
See main article: 1928–29 Scottish Cup. Dumbarton reached the third round before losing out to Raith Rovers.
Dumbarton were runners-up in the Dumbartonshire Cup for the fifth season running, again losing out to Clydebank in the final.
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Source:[2]
| Player | From | Date | |
|---|---|---|---|
| John Jackson | Renton Juveniles | 1 May 1928 | |
| Johnny Haddow | Rangers | 22 May 1928 | |
| Robert Orr | Crystal Palace | 6 Sep 1928 | |
| William Molloy | Celtic | 7 Sep 1928 | |
| Alex McIssac | 24 Nov 1928 | ||
| Benjamin Swanson | Rothesay Royal Victoria | 17 Jan 1929 | |
| Robert Speedie | 25 Apr 1929 |
| Player | To | Date | |
|---|---|---|---|
| James Reid | Freed | 20 May 1928 | |
| James Warden | Freed | 20 May 1928 |
In addition Andrew Hamill, James Laing, Thomas Lamont, Andrew Mair, William Murray, John Pearson and John Russell all played their last games in Dumbarton 'colours'.
Source:[3]