The International Day of Mathematics (IDM) is a worldwide celebration. Each year on March 14 all countries will be invited to participate through activities for both students and the general public in schools, museums, libraries and other spaces.

March 14 was chosen as the date for the IDM because it was already celebrated in many countries as Pi Day, based on the fact that some countries write it as 3/14 and the mathematical constant Pi is approximately 3.14.

It will take place in Bogotá, Colombia and will be hosted by Universidad de Los Andes and Universidad Sergio Arboleda. The previous meetings took place in Bogotá (2003, 2008, 2012, and 2014), Medellín (2016) and Barranquilla (2018); see the history here.