Bayside is a neighbourhood in the City of Commack in the Senja District. It was the first neighbourhood to be created after the founding of the Village of Commack, making it the second oldest neighbourhood after Central Centura. It is named after the bay it sits along from Kennings Lake.
As the Village of Commack began to grow, it started establishing its first residential area, this was along Wilde Drive. Since most of the homes in this area were along the bay of Kennings Lake, they decided to establish it as the Bayside Neighbourhood, making it the first named neighbourhood. It remains one of the most populated neighbourhoods of the City of Commack.