There are several places and institutions named after William Floyd, they include:
- the William Floyd School District in present-day Brookhaven Town, which includes William Floyd Elementary, William Floyd Middle School and William Floyd High School.
- William Floyd Parkway in the Town of Brookhaven.
- The town of Floyd in Oneida County. General Floyd moved into the present day hamlet of Westernville, Oneida County before his death. His final resting place in the Westernville cemetery is marked with a simple stone plaque.
- the General William Floyd Elementary School in the Holland Patent School District, Onieda County.