Alison Darcy (Alison M. Darcy) is an American research psychologist and technologist. She is the founder and president of Woebot Health (Woebot), a company that provides digital therapeutics and behavioural health products. Associated with Stanford University, University College Dublin, and the field of mental health, she completed the 2007 work "An evaluation of a group cognitive behavioural theraputic intervention for inpatient adults with anorexia nervosa : exploring symptom change and the patients' perspective" (OCLC 605278740), and was a speaker at Web Summit 2021.

Darcy was an undergraduate student in Ireland at University College Dublin, where she specialised in psychology. After completing her studies, Darcy became interested in computer science, so moved to London to work in an investment bank as a software developer. The investment bank was acquired by a larger bank during the dot com crash, leaving Darcy looking for new options. In particular, she was interested in combining her skills in technology with her talent for psychology, and worked with a charity to support people with eating disorders.^[1,20,21] At the time there was very little online support for people with mental health conditions, and accessing care was particularly difficult for people in rural communities. Working with one of her colleagues in software development, Darcy built an online support network, providing round-the-clock support to people who needed to talk.^[20]

She eventually returned to University College Dublin for a graduate degree, and eventually a doctoral research programme in clinical psychology. Her research considered the effectiveness of group cognitive behavioural therapy.^[3,2] After a year in London, Darcy moved to the United States, where she joined Stanford University as a postdoctoral researcher in clinical psychology.^[16] She completed her postdoc at the Stanford University School of Medicine and the American Psychiatric Association. In her clinical practice, Darcy was increasingly concerned that there was no continuity between leaving patient care and entering the real world.^[1,5]

At Stanford, she collaborated with Andrew Ng, and became interested in whether artificial intelligence can meaningfully help people with mental health conditions.^[4] Darcy wanted to find a way to "safely and effectively" integrate AI usage into healthcare.^[2] In 2023, Darcy was named to the TIME100 AI List for her impactful work combining artificial intelligence and mental health through her company, Woebot Health.

Darcy continued to research eating disorders, with a particular focus on anorexia nervosa. She recognised that very few clinicians and doctors had the appropriate training to treat patients with the condition, and she pioneered the use of online learning methods to train them. She was also the founder of one of the first online support groups for people with eating disorders.^[20,21] Becoming increasingly aware that to combine technology and psychology she would have to do it outside academia, she left to start her own company.^[1,4] Darcy wants to make mental health services and cognitive behavioural therapy training accessible to all.^[10]

In 2017, Darcy founded Woebot Health, an artificial intelligence-powered chatbot that helps users monitor their moods and manage their mental health.^[7,9] The board of Woebot is chaired by Ng. More specifically, Woebot is a dynamic and individualized instrument via which patients can forge a therapeutic connection. It maintains the scalability and agency that define self-help techniques while enhancing (rather than replacing) human healthcare providers and unlocking the therapeutic power associated with guiding.^[8] This AI acts like an automatic therapist that has been found to reduce symptoms of anxiety and depression in two weeks.^[9] In April 2020, Woebot added COVID-19 support, expanding its CBT support to include interpersonal psychotherapy, following which it has been suspected to reduce depression and anxiety symptoms within as little as the passage of two weeks.^{[11,12,8,13,16]} By 2023, $123.5 million had already been made by Woebot, which already had over 1 million users.^[14]

In the fall of 2023, Darcy was added to the 2023 Time100 AI List, which aims to highlight individuals that have made significant and impactful artificial intelligence advancements.^[8] In late June 2025, Darcy decided to shut down Woebot's therapy chatbot due to regulatory challenges, as the bot was unable to keep up with the rate of technological advancement in the AI space.^[15] While Darcy did decide to shut the chatbot down, she has found more ways to give back to the field, writing many books when discussing the field and serving as a lecturer at Stanford University.

Darcy's selected publications include the 2013 paper "A review of attention biases in women with eating disorders," co-authored with Vandana Aspen and James Lock and published in Cognition and Emotion on August 1, 2013. On February 9, 2016, Alison M. Darcy, Alan K. Louie, and Laura Weiss Roberts published "Machine Learning and the Profession of Medicine" in JAMA. In 2017, Kathleen Kara Fitzpatrick, Alison Darcy, and Molly Vierhile published "Delivering Cognitive Behavior Therapy to Young Adults With Symptoms of Depression and Anxiety Using a Fully Automated Conversational Agent (Woebot): A Randomized Controlled Trial" in JMIR Mental Health.