Sydenham Town Hall, also known as the Sydenham Municipal Office, is the chief administrative building of the township of Sydenham. Despite the legal status of Sydenham is a township, the administrative building is named as a town hall nonetheless. The building houses the Sydenham Township Council, its associated departments and their employees.

The town hall also serves as a transportation hub for the township. The town hall features an on-street bus loop directly outside of the building. Gravenhurst Regional Transit route 76B and GO Transit route 85 serves the town hall.