Sapanca is a town and district in the Sakarya Province in the Marmara region of Turkey near Lake Sapanca. The town's mayor is İbrahim Uslu (AKP).

Sapanca has been recently become a tourist destination, due to its stunning natural environment and its lake, called Sapanca Gölü, as well as its proximity to İstanbul and the city of İzmit, also known as Kocaeli. The town has a number of hotels, such as the RichmondNua Wellness Spa.