| Department of Survey | |
| Native Name A: | Sinhala; Sinhalese: මිනින්දෝරු දෙපාර්තමේන්තුව Tamil: நில அளவைத் திணைக்களமானது |
| Seal: | File:Department of Survey SL seal.png |
| Preceding6: | --> |
| Superseding6: | --> |
| Jurisdiction: | Government of Sri Lanka |
| Headquarters: | 150 Kirula road, Colombo 5 |
| Coordinates: | 6.8922°N 79.8739°W |
| Employees: | 5968 (2016)[1] |
| Budget: | Rs 3.43 billion (2016) |
| Minister1 Name: | Gayantha Karunathilaka |
| Minister1 Pfo: | Minister of Lands and Parliamentary Reforms |
| Chief1 Name: | Palitha Udayakantha |
| Chief1 Position: | Surveyor General |
| Chief9 Name: | --> |
| Parent Department: | Ministry of Lands and Parliamentary Reforms |
| Child25 Agency: | --> |
| Keydocument1: | Survey Act, No. 17 of 2002 |
The Department of Survey of Sri Lanka (also known as the Department of the Surveyor General) (Sinhala: ශ්රී ලංකා මිනින්දෝරු දෙපාර්තමේන්තුව Shri Lanka Minindoru Departhamenthuwa) is a non-ministerial government department in Sri Lanka. Established on 2 August 1800, it is the oldest unchanged government department in the country. The department is responsible for national surveying and mapping. It is also the national focal point of GIS and Remote Sensing with representation in the Global Mapping Project organised by the International Steering Committee for Global Mapping (ISCGM). The head of the department is Surveyor General of Sri Lanka.[2]