| Name | Affiliation | Occupation / Position Title | City | Country | State | |
|---|
| Lahann, Rebbeca | Spectrum Psychology and Wellness | Psychologist | Gilbert | United States | Arizona | View |
| Laird, Kelsey | Inner Strength Psychotherapy | Clinical Psychologist | Berkeley | United States | California | View |
| Lak, Elnaz | Shahid madani university | Psychologist | Tabriz | Iran, Islamic Republic of | | View |
| Lakoski, Bridgit | Discovery Counseling | LPC-A | Austin | United States | Texas | View |
| Lam, Sarah | Bankstown Lidcombe Hospital | Clinical Psychologist | Bankstown | Australia | New South Wales | View |
| Lam, Yuk Shun | Hong Kong Psychological Society | Counselling Psychologist | Causeway Bay | Hong Kong | Wan Chai | View |
| Lamb, Karan | Lamb Psychological Services | Psychologist | Tampa | United States | Florida | View |
| Lambie, Ian | university of auckland | clinical psychologist | Auckland | New Zealand | | View |
| Lamenza, Miguel | particular | Psicólogo | Mar del Plata | Argentina | Buenos Aires | View |
| Lamers, Saskia | L-psychology | GZ-psycholoog | Vijfhuizen | Netherlands | Noord-Holland | View |
| Lami, Maria | IPSICCO | PhD | Santiago del Estero | Argentina | Santiago del Estero | View |
| Lamothe, Jean-Christian | En cabinet Privé | Psychologue | Saint-Charles-Borromée | Canada | Quebec | View |
| Lamp, Amber | Ray of Light Counseling Services, LLC | Licensed Professional Counselor | Columbus | United States | Georgia | View |
| Lancaster, Tessandra | Goodwill Industries of Central Texas | Mental Health Counselor | Austin | United States | Texas | View |
| Lance, Mary | Mary Katherine Therapy | Marriage and Family Therapist | Greenville | United States | South Carolina | View |
| Landart, Débora | Profesional | LICENCIADO EN PSICOLOGIA | Villa María | Argentina | Cordoba | View |
| Landau, Danielle | Clinical Psychology Department | Clinical Psychologist | London | United Kingdom | London | View |
| Lander Miller, Erica | Behavioral Care Center of New Jersey | Founder and Clinical Director | Florham Park | United States | New Jersey | View |
| Landowski, Pierre | Private Cabinet | Psychologist | LYON | France | Rhône | View |
| Lane, Liz | Australian Psychological Society | Psychologist | Forest Lake | Australia | Queensland | View |
| Langer, Álvaro | San Sebastián University | Full Professor | Santiago | Chile | | View |
| Langeveld, Sissel | ActinBeeld | Beeldend therapeut/ ACT therapeut/ ACT docent | Rotterdam | Netherlands | Zuid-Holland | View |
| Langley, Stuart | Stuart Edward Michael Langley Psychology | Psychologist | FARMBOROUGH HEIGHTS | Australia | New South Wales | View |
| Lanza di Scalea, Teresa | Women's Psychiatry and Well-Being | Founder | Austin | United States | Texas | View |
| Lanza, Anna | 13/9/2025 | Especialista em Análise do Comportamento e Terapias Comportamentais Contextuais | Rondonópolis | Brazil | Mato Grosso | View |
| Lanzl, Claudia | Praxis für Psychotherapie | Dipl.-Psych. | Bernau bei Berlin | Germany | Brandenburg | View |
| Laporaes, Enedes | particular | Licenciada | Ciudad Autónoma de Buenos Aires | Argentina | Capital federal | View |
| Lappalainen, Raimo | Department of Psychology, University of Jyväskylä | Professor Emeritus | Tampere | Finland | Tampere Region | View |
| Lappin, Maeve | Ulster University & Queens University Belfast | Speech and Language Therapist and Behavior Analyst | Belfast | United Kingdom | Co Antrim | View |
| Lara, Gerardo | particular | Licenciado | Saltillo | Mexico | Coahuila | View |
| Larsen-Barr, Miriam | Engage Aotearoa | Clinical Psychologist | Auckland | New Zealand | Auckland | View |
| Larsson, Andreas | Mid Sweden University | Senior Lecturer / Lic. Psychologist | ÖSTERSUND | Sweden | Jämtlands län | View |
| Lascuola, Jordan | Aspire Counseling | Therapist | Columbia | United States | Missouri | View |
| Lashley, Samuel | Private practice | Clinical Psychologist | Arlington | United States | Virginia | View |
| Lask, Mauricio | Private Practice/ La Clinica de la Raza | Psychologist | Emeryville | United States | California | View |
| Lasprugato, Lou | Private consulting practice | Psychotherapist, Peer-Reviewed ACT Trainer | Blacksburg | United States | Virginia | View |
| Lassila, Helmi | Psykologipalvelut Helmi Lassila | Psychotherapist | Helsinki | Finland | Uusimaa | View |
| Lau Mora, Sara | Consultorio particular | Psychologist | Lima | Peru | Lima | View |
| Lau, Yuet Han | Private Psychology Practice | Clinical Psychologist | Kowloon | Hong Kong | | View |
| Laurenti Ferreira, Karina | Paradigma - Centro de Ciências e Tecnologia do Comportamento | Psicologa | São Paulo | Brazil | Sao Paulo | View |
| Laursen, Jens Wraa | Private Practitioner | Psychologist | Aarhus V | Denmark | Århus | View |
| Lautrup, Carrie | Bækkely Psykolog | Independent Psychologist, autorized | Bramming | Denmark | Ribe | View |
| Lauwen, Ineke | Private practice as a supervisor | clinical psychologist/psychotherapist | Amsterdam | Netherlands | Noord-Holland | View |
| Lauwers, Katelijne | Into the BLUE - Psychologie & Yoga | Psychologist (PhD) - Behavioral counselor - Yoga teacher | Oostende | Belgium | West-Vlaanderen | View |
| Lauwers, Tine | Clinical | Psychologist | Herenthout | Belgium | Antwerpen | View |
| Laux, Walter | ACT Counseling | Counselor | Oak Creek | United States | Wisconsin | View |
| LaVieri, Gretel | Self-employed private practice | Clinical social worker | Pennington | United States | New Jersey | View |
| Lawliss, Katherine | Dr. Katie Lawliss | Clinical Psychologist | Keeseville | United States | New York | View |
| Lawson, Lauren | La Trobe University | Senior Lecturer | Reservoir | Australia | Victoria | View |
| Lawson, Nicholas | Private practice | LCSW | Irvington | United States | New York | View |