Dr. Katherine Hertlein

Dr. Katherine Hertlein, Ph.D., LMFT, Approved AAMFT Supervisor, Couples Therapy Expert & MFT Guru.

Dr. Katherine Hertlein is a highly respected authority in the field of Marriage and Family Therapy (MFT) and is widely regarded as a guru, particularly in couples therapy. With over two decades of experience, her groundbreaking work has transformed how therapists and couples approach relationship challenges. Dr. Hertlein has published extensively on topics such as technology's impact on relationships and innovative models for relationship therapy.
At the Relationship Institute, Dr. Hertlein plays a pivotal role as a consultant and therapist, leading couples through transformative retreats. Her compassionate, evidence-based approach helps couples break through barriers, improve communication, and deepen emotional intimacy. Whether guiding clients through complex relationship dynamics or mentoring fellow therapists, Dr. Hertlein’s expertise brings an unparalleled level of insight and healing to her work.
Her passion for fostering healthy, resilient relationships makes her an invaluable asset to the Relationship Institute, where she continues to inspire lasting change.