On behalf of the Organizing Committee, it is my great pleasure to welcome you to the 3rd International Congress of Hypertension in Children and Adolescents (ICHCA) to be held in Warsaw, Poland from to 12–14 March, 2021. This follows a highly successful 2nd ICHCA Congress held in Warsaw, Poland in 2019. This was attended by more than 130 delegates from 25 countries emphasizing the international flavour of the congress. Attendance throughout the meeting was extremely high and there was excellent interaction between speakers and delegates.