WHO renames COVID-19 variants with the Greek alphabet (i.e., Alpha, Beta, Gamma, etc), making them simple, easy to say and remember. The naming system aims to prevent calling COVID-19 variants by the places where they are detected, which is stigmatizing & discriminatory.

Tracking SARS-CoV-2 variants – World Health Organization

Commentaries: The name game for coronavirus variants just got a little easier – STAT AND Covid: WHO renames UK and other variants with Greek letters – BBC