Smith, then Brown and then Wilson saw the most Canadian military fatalities in both wars. according to Commonwealth War Graves Commission records. For the population as a whole, for more than a century, Smith has been the most common surname in Canada, the next most common being Brown, Tremblay and Martin.
The table below shows the most frequent surnames from CWGC records of Canadians who died in the two world wars.
| SURNAME | FWW | SWW |
|---|---|---|
| SMITH (1) | 1 | 1 |
| BROWN (4) | 2 | 2 |
| WILSON (7) | 3 | 3 |
| JONES (2) | 4 | 10 |
| TAYLOR (6) | 5 | 6 |
| CAMPBELL (53) | 6 | 5 |
| McDONALD (-) | 7 | 22 |
| MacDONALD (-) | 8 | 4 |
| ANDERSON (19) | 9 | 7 |
| STEWART (-) | 10 | 13 |
| JOHNSON (5) | 11 | 8 |
| SCOTT (35) | 12 | 19 |
| WHITE (11) | 13 | 15 |
| WILLIAMS (3) | 14 | 17 |
| THOMPSON (12) | 15 | 11 |
| MARTIN (15) | 16 | 9 |
| WALKER (17) | 17 | 25 |
| MOORE (14) | 18 | 18 |
| MILLER (8) | 19 | 12 |
| CLARK (18) | 20 | 16 |
| YOUNG (36) | 21 | 30 |
| ROSS (-) | 22 | 35 |
| ROBERTSON (-) | 23 | 27 |
| REID (-) | 24 | 21 |
| WRIGHT (22) | 25 | 24 |
Tremblay ranked 530th in the FWW and 180th in the Second.
The number against the name in the first column is the rank given at https://www.findmypast.co.uk/surname/. Scots names are more prominent among the Canadian war dead.