| Honorific-Prefix: | Hon. |
| B. Neminathan | |
| Honorific-Suffix: | MP |
| Constituency Mp: | Trincomalee |
| Parliament: | Ceylonese |
| Term Start1: | 1970 |
| Term End1: | 1977 |
| Predecessor1: | S. M. Manickarajah |
| Successor1: | R. Sampanthan |
| Birth Date: | 28 March 1922 |
| Death Date: | Died before 1984 |
| Blank1: | Ethnicity |
| Data1: | Ceylon Tamil |
Balasubramaniam Neminathan (born 28 March 1922, died before 1984) was a Ceylon Tamil politician who served as a Member of Parliament.
Neminathan was born in March 1922.[1] He stood as the Illankai Tamil Arasu Kachchi's (Federal Party) candidate for Trincomalee at the 1970 parliamentary election. He won the election and entered Parliament.[2] In a 1984 publication by his successor R. Sampanthan, it was noted that B. Neminathan is deceased.[3]