IUPAC is pleased to announce the call for nominations for the IUPAC 2019 Distinguished Women in Chemistry or Chemical Engineering Awards. The purpose of the awards program, initiated as part of the 2011 International Year of Chemistry celebrations, is to acknowledge and promote the work of women in chemistry or chemical engineering worldwide. 23 women were honored during a ceremony held at the IUPAC Congress in San Juan, Puerto Rico, on 2 August 2011. At each of the subsequent IUPAC Congresses, 12 women received this recognition; in Istanbul, Turkey in 2013, in Busan, Korea in 2015, and in Sao Paulo, Brazil. A similar award ceremony will take place during the 2019 IUPAC Congress in July 2019 in Paris, France.