Commandant (/ˌkɒmənˈdɑːnt/ or /ˌkɒmənˈdænt/; French: [kɔmɑ̃dɑ̃]) is a title often given to the officer in charge of a military (or other uniformed service) training establishment or academy. This usage is common in English-speaking nations. In some countries it may be a military or police rank. It is also often used to refer to the commander of a military prison or prison camp (including concentration camps and prisoner of war camps).