The coat of arms of Randwick City Council was granted on 27 August 1962 and designed by R.V. Ellis.
The Arms show a rising sun breaking through a bank of clouds, representing the birth of a new city. The three red bars represent the three areas that were merged into the City of Randwick as well as the three local government chambers which the city council now contains. The wavy lines depict the Pacific Ocean and the waves breaking on the shore. The motto Per Aquas Per Humum Per Aerem signifies the use of air, sea and land in Randwick City.
The crest of two stylised dolphins on a globe symbolises the large scale migration to the area as well as the international focus of the council. The globe stands for the wide geographic distribution of Randwick residents and their influence overseas. The black base of the crest with the dolphins in silver represent Randwick's coastal character. The dolphins themselves signify Randwick's reputation as a leading surf lifesaving centre. The supporters of the arms are male and female figures standing on rocks. They represent the people who built Randwick and are holding the arms of Randwick.