No. An Oath Commissioner (also called a Commissioner for Oaths) is not a gazetted officer.
A gazetted officer is a government appointee whose name and appointment are published in the official government gazette. This category includes senior civil servants, military officers, judges, and certain statutory authorities.
They are typically:
Their role is to administer oaths, affirmations, and statutory declarations—not to exercise executive or judicial power.
Because they perform a quasi-official function, people sometimes assume they hold gazetted rank. They do not. Their authority derives from specific legislation (e.g., the Commissioners for Oaths Act 1889 in the UK), not from gazetted appointment.