| Building Name: | Galkissa Samudrasanna Vihara |
| Native Name: | ගල්කිස්ස සමුද්රාසන්න විහාරය |
| Location: | Mount-Lavinia, Sri Lanka |
| Coordinates: | 6.8289°N 79.8641°W |
| Province: | Western Province |
| District: | Colombo |
| Heritage Designation: | Archaeological protected monument (6 June 2008) |
| Architecture: | yes |
| Architecture Type: | Buddhist Temple |
| Year Completed: | 1845[1] |
Samudrasanna Vihara (Sinhala; Sinhalese: '''සමුද්රාසන්න විහාරය''') is a historic Buddhist temple situated at Mount-Lavinia in the Western province, Sri Lanka. It is located near to the Templers road junction on the Colombo-Galle main road. The temple has been formally recognised by the Government as an archaeological site in Sri Lanka. The designation was declared on 6 June 2008 under the government Gazette number 1553.