General Sir William Dillon Otter | |
|---|---|
 William Dillon Otter in 1900 | |
| Born | December 3, 1843 The Corners, Canada West |
| Died | May 5, 1929 (aged 85) Toronto, Ontario |
| Allegiance | Canada |
| Service | Canadian Militia |
| Years of service | 1866–1902 |
| Rank | General |
| Commands | Chief of the General Staff Royal Canadian Regiment of Infantry |
| Battles / wars | Fenian Raids |
| Awards | Knight Commander of the Order of the Bath Commander of the Royal Victorian Order Volunteer Officers' Decoration |
General Sir William Dillon Otter KCB CVO VD (December 3, 1843 – May 6, 1929) was a professional Canadian soldier who became the first Canadian-born Chief of the General Staff, the head of the Canadian Militia.