| Club: | Dumbarton |
| Season: | 1945–1946 |
| Manager: | Jackie Milne |
| Stadium: | Boghead Park, Dumbarton |
| League: | Division B |
| League Result: | 8th |
| Cup1: | B Division Supplementary Cup |
| Cup1 Result: | Runner-up |
| Cup2: | League Cup South |
| Cup2 Result: | Prelims |
| League Topscorer: | Jim McGowan (13) |
| Season Topscorer: | Jim McGowan (21) |
| Pattern La1: | _black_hoops |
| Pattern B1: | _goldhoops |
| Pattern Ra1: | _black_hoops |
| Pattern So1: | _goldtop |
| Leftarm1: | ffc100 |
| Body1: | 000000 |
| Rightarm1: | ffc100 |
| Shorts1: | ffffff |
| Socks1: | 000000 |
| Prevseason: | 1944–45 |
| Nextseason: | 1946–47 |
The 1945–46 season was the seventh (and last) Scottish football season in which Dumbarton competed in specially arranged wartime football.
See main article: 1945-46 Scottish Football League. In what was the last Scottish football season to be played under wartime conditions, the League competition was split into two divisions, with Dumbarton playing in Division B. Dumbarton finished 8th out of 16 with 26 points - 18 behind champions Dundee. No promotion or relegation resulted from the competition.
See main article: 1945–46 Southern League Cup (Scotland). The story in the League Cup South was a familiar one, with Dumbarton failing to qualify from their section games.
The Summer Cup was replaced for B Division teams with a Supplementary Cup, and Dumbarton reached the final only to lose out to Airdrie.
As in 1919, a special Victory Cup was played for, but for Dumbarton there was a first round exit, to Airdrie.
The Stirlingshire Cup competition was re-established for the first time since 1939, with Dumbarton falling at the semi-final stage to A Division opponents, Falkirk. The competition was however never completed.
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Source:[1]
| Player | From | Date | |
|---|---|---|---|
| Jim Douglas | Clyde | 18 May 1945 | |
| Bernard McDonald | 14 Aug 1945 | ||
| Thomas O'Reilly | 1 Sep 1945 | ||
| Peter McArthur | Clyde | 12 Sep 1945 | |
| Hugh McNamara | Clyde | 4 Oct 1945 | |
| Thomas Jess | St Mirren | 6 Oct 1945 | |
| Charlie Bootland | amateur | 15 Oct 1945 | |
| Archiblad Dingley | Ayr United | 16 Oct 1945 | |
| Alexander Filshie | Morton | 8 Nov 1945 | |
| William Neil | Rangers | 20 Nov 1945 | |
| David Bartleman | Burnbank Athletic | 29 Nov 1945 | |
| Ralph Cowan | Rangers | 1 Jan 1946 | |
| James Brown | 23 Feb 1946 | ||
| Ian Ogilvie | Forfar Celtic | ||
| Bobby Ross | Rangers | ||
| Gordon MacFarlane | |||
| Jimmy Smith |
| Player | To | Date | |
|---|---|---|---|
| Willie Reid | St Mirren | 23 May 1945 | |
| George Brooks | Falkirk | 26 May 1945 | |
| Robert Murphy | Released | 1 Jul 1945 | |
| George Jeffrey | Hamilton | 30 Aug 1945 | |
| Thomas O'Reilly | 17 Sep 1945 | ||
| John Hepburn | Clyde | 4 Oct 1945 | |
| Peter McArthur | Released | 26 Oct 1945 | |
| Ernest Marshall | Released | 22 Nov 1945 | |
| Archibald Dingley | amateur | 12 Jan 1946 | |
| Joseph Henderson | Hibernian (loan) | 30 Jan 1946 | |
| Hugh McNamara | released | 2 Feb 1946 | |
| Ralph Cowan | Stirling Albion | 20 Feb 1946 | |
| John Browning | Albion Rovers |
Source:[2]
In addition Andrew Bartleman, David Boyd, Tom Brawley, Andrew Cheyne, Frank Douglas, Stan Gullan, James Hoy, Jackie Milne, John Mulvaney, Vincemnt Pritchard and David Watson would all have played their last 1st team game for Dumbarton before the end of the season.