Ōbu is a city located in Aichi Prefecture, Japan. As of 1 October 2019, the city had an estimated population of 92,179 in 39,382 households, and a population density of 2,739 persons per km2. The total area of the city is 33.66 square kilometres (13.00 sq mi). Ōbu has been a member of the World Health Organization’s Alliance for Healthy Cities (AFHC) since June 5, 2000.

The City of Port Phillip is a local government area of Victoria, Australia on the northern shores of Port Phillip, south of Melbourne's central business district. It has an area of 20.7 km2 and had a population of 113,200 in June 2018.