| Kesbewa | |
| Native Name: | කැස්බැව கெஸ்பேவா |
| Pushpin Map: | Sri Lanka Colombo District |
| Pushpin Label Position: | above |
| Pushpin Map Caption: | Location in Colombo District |
| Subdivision Type: | Country |
| Subdivision Name: | Sri Lanka |
| Subdivision Type1: | Province |
| Subdivision Name1: | Western Province |
| Subdivision Type2: | District |
| Subdivision Name2: | Colombo District |
| Area Total Km2: | 50.39 [1] |
| Area Total Sq Mi: | 19.46 |
| Population As Of: | 2012 |
| Population Total: | 243,842 |
| Population Density Km2: | 3,488 |
| Population Blank1 Title: | Ethnicities |
| Utc Offset: | +05:30 |
| Coordinates: | 6.7953°N 79.9386°W |
| Postal Code: | 10300 |
Kesbewa (Sinhala; Sinhalese: කැස්බැව, Tamil: கெஸ்பேவா) is a suburb town of the city of Colombo, in Sri Lanka, situated approximately 20km (10miles) south of Colombo. It is one of the relatively more populated suburbs located in the Colombo District of the Western Province and it is surrounded by the other suburbs of Moratuwa, Maharagama, Pannipitiya, Bandaragama and Kahathuduwa. The Kesbewa Urban Council is located in Piliyandala.
Two major roads run through Kesbewa; the road connecting Colombo and Horana, known as the 120 bus route, and the road connecting Mount Lavinia and Kottawa (the 255 bus route). In addition, a new bypass road named the "Piliyandala Bypass Road" was built in 2015 connecting Piliyandala and Kesbewa Junction. The beaches of Mount Lavinia are a 15-30 minute drive away from Piliyandala.There are other bus routes from Maharagama to Piliyandala, and Bandaragama to Pilyandala (the 162 bus route).