An officer in The Salvation Army is a Salvationist who is an ordained minister of the Christian faith, but who fulfills many other roles not usually filled by clergy of other denominations. They do so having been trained, ordained and commissioned to serve and lead and given a title which uses the terms of typical military rank.

The Salvation Army (TSA) is a Protestant Christian church and an international charitable organization headquartered in London, England. It is aligned with the Wesleyan-Holiness movement. The organization reports a worldwide membership of over 1.7 million, consisting of soldiers, officers, and adherents who are collectively known as salvationists. Its founders sought to bring salvation to the poor, destitute, and hungry by meeting both their "physical and spiritual needs". It is present in 133 countries, running charity shops, operating shelters for the homeless, and disaster relief and humanitarian aid to developing countries.