Interpersonal psychotherapy, or IPT for short, is a kind of therapy that is time-limited and structured. It usually takes place over 10-16, weekly sessions. It is concerned with how psychological problems affect relationships, and how relationship issues can contribute to psychological problems.

IPT focuses mainly on relationship issues, because it has been found that better interpersonal relationships are associated with improvements in psychological symptoms. IPT therefore aims to help people make changes in their relationships.