Unitas may refer to:
- Johnny Unitas, professional American football player
- Unitas, a proposed international currency
- UNITAS a multi-lateral Naval operation in South and Central America
- Unitas Capital, a private equity firm, formerly known as CCMP Capital Asia
- Humani generis unitas was a planned encyclical of Pope Pius XI before his death on February 10, 1939, which condemned antisemitism, racism and the persecution of Jews.