Professor Sigita Lesinskiene is a child and adolescent psychiatrist, researcher, and lecturer. She leads the Clinic of Psychiatry, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Lithuania. She graduated in pediatrics, completed a fellowship in child and adolescent psychiatry, and then completed her doctoral studies. She defended her PhD dissertation in 2000 (“Autistic disorder among children of Vilnius”). Her fields of scientific activity and research include epidemiological studies, student health, autistic spectrum, tics, hyperkinetic disorders, depression, suicide, self-injurious behavior, eating disorders, COVID-19 and mental health, psychiatric services, doctor professional communication, psychosomatics, and art therapy. She is the project leader of several national and international research projects, and the leader and scientific supervisor of the students’ research network group in the Faculty of Medicine since 2001. She regularly participates at national and international congresses of child and adolescent psychiatrists, family doctors, and pediatricians. She was the president of the Lithuanian Society of Child and Adolescent Psychiatrists in 2008–2012 and 2020–2022. In 2010–2014, she was a member of the IACAPAP (International Association of Child Adolescent Psychiatry and Allied Professions) Executive Committee (assistant). In 2014–2018, she was the vice president and regional coordinator of the IACAPAP for Eastern European countries.