n. Hist. the chief executive officer of an administrative area; sometimes, a deputy for the Governor-in-Chief or for the Lieutenant-Governor.
- 1796  His honor, the administrator, has been pleased to appoint Thos' Ridout, esq. register for the county of York, in this province.
- 1866  Soon after his excellency's arrival, major general Brock was appointed president and administrator of the government in Upper Canada, instead of lieut.-governor Gore, who recently retired.
- 1932  When Hon. Peter Russell became the administrator of the civil government of Upper Canada, he was . . . subject to much ill health.