Conrad W. Baars, M.D., (1919–1981) was a Catholic psychiatrist. His most prominent work is with Dr. Anna Terruwe in the study of the human emotional life. Their general idea is that many emotional disturbances in a human stem from a lack of experiencing unconditional love during his or her life. He and Terruwe are known for their model of Emotional Deprivation Disorder and a different approach to Obsessive-Compulsive Disorder.

Living in the Netherlands during the Second World War, Bar was forced to attempt to escape.e During an organized escape to Spain over the Pyrenees mountains, his group got lost in a sudden snowstorm. Later, they were captured by the Nazis. After being questioned by the Gestapo, Baars was sent to a concentration camp north of Paris. In the winter of 1943, he was transferred to the Buchenwald Concentration Camp. Because he was a medical student, he was put in charge of nursing the sick. Despite having better living conditions because of his position, he lost several teeth and suffered from a weakened heart due to malnutrition. He was freed on April 11, 1945; the day the American army arrived.

Dr. Baars and Dr. Terruwe treated many priests and religious in their practices and presented important information to the bishops of the Catholic Church.