| Honorific-Prefix: | Hon. |
| K. Kanagaratnam | |
| Native Name: | க. கனகரத்தினம் |
| Native Name Lang: | ta |
| Honorific-Suffix: | MP |
| Constituency Mp1: | Vaddukoddai |
| Parliament1: | Ceylonese |
| Term Start1: | 1947 |
| Term End1: | 1952 |
| Successor1: | V. Veerasingam |
| Birth Date: | 28 July 1892 |
| Party: | All Ceylon Tamil Congress |
| Profession: | Civil servant |
| Blank1: | Ethnicity |
| Data1: | Ceylon Tamil |
Kandiah Kanagaratnam (Tamil: கந்தையா கனகரத்தினம்; 28 July 1892 - 3 October 1962)[1] was a Ceylon Tamil civil servant, politician, Member of Parliament and Parliamentary Secretary.
Kanagaratnam was born on 28 July 1892.[2] [3] He was the son of Kandiah from Vaddukoddai in northern Ceylon.[2]
Kanagaratnam joined the Government Clerical Service in 1911.[2] He became Chief Audit Examiner in 1925.[2] He was later Deputy Auditor General and Acting Auditor General.[2]
Kanagaratnam contested the 1947 parliamentary election as the All Ceylon Tamil Congress' (ACTC) candidate in Vaddukoddai. He won the election and entered Parliament.[4] The ACTC joined the United National Party led government on 3 September 1948 and Kanagaratnam was appointed Parliamentary Secretary to the Minister of Education.[2]
Kanagaratnam stood for re-election at the 1952 parliamentary election but was defeated by independent candidate V. Veerasingam.[5]