Other forms: commandants
One name for a commanding military officer is a commandant. In the US, a commandant is typically in charge of a military school or training facility.
Many English-speaking militaries use the word commandant in various ways — in Ireland, for example, a commandant in the Army is the same as a major. The senior officer at a military college in New Zealand is also a commandant. In the US, commandant isn't a rank, like private or general, but an appointed position. In French, commandant means "the one commanding," from the verb commander, "to order."