Kasba Peth is the oldest peth (locality) in Pune, India and is very adjacent to the historic Shaniwar Wada palace-fort. Kasba Peth was the first Peth to be established somewhere in the 5th century, and is the oldest area in Pune. It is called the "Heart of Pune City."

Kasba Ganpati the Gram Daivat (root deity) of Pune, is in Kasba Peth. This temple was built in Shivaji Maharaja's reign. Kasba Peth is the only locality in Pune where one can still find the existence of a "Wada (house)" or an old styled living apartment with unique architecture. Kasba Peth is mostly a residential area. A wide variety of shops surround Kasba Peth (Tambat Ali, Shimpi Ali, Vyavahar Ali, Bhoi Ali etc.) . It is well known for the Kumbhar Wada (area of earthen potmakers) and the Tambat Ali (area of brass/copper utensil manufacturers).

There is a story behind the Kasba Ganpati : Some children had brought cows there for grazing and found an idol of Ganapati. Then they colored this idol and started worshipping it. Shivaji Maharaja's mother Jijabai also visited there whenever she came to Lal Mahal. Hence Dadoji Konddeo built a pendol in front of the idol where the Kasba Ganpati Temple is today.