| Honorific-Prefix: | Hon. |
| Sam Tambimuttu | |
| Constituency Mp: | Batticaloa District |
| Parliament: | Sri Lanka |
| Term Start1: | 1989 |
| Term End1: | 1990 |
| Successor1: | Joseph Pararajasingham |
| Birth Date: | 1932 |
| Death Place: | Colombo, Sri Lanka |
| Party: | Eelam People's Revolutionary Liberation Front |
| Profession: | Lawyer |
Samuel Pennington Thavarasa Tambimuttu (19321990) was a Sri Lankan Tamil lawyer, politician and Member of Parliament.
Tambimuttu was born in 1932.[1] He was the grand nephew of E. R. Tambimuttu, member of the State Council of Ceylon.[1] [2] He was married to Kala, daughter of Senator M. Manickam.[1] [3] They had a son Arun.[2]
Tambimuttu was a Methodist.[1] [2]
Tambimuttu was a proctor and practiced law in Batticaloa.[1] [3] He was chairman of Batticaloa Citizen's Committee.[1] [3] In this capacity he would intervene on behalf of youths arrested by the paramilitary Special Task Force.[4]
Tambimuttu had been a member of the Tamil United Liberation Front for a long time.[3] He contested the 1989 parliamentary election as one of the Eelam People's Revolutionary Liberation Front's candidates in Batticaloa District and was elected to Parliament.[5]
Tambimuttu was assassinated on 7 May 1990 outside the Canadian High Commission in Colombo.[3] His wife Kala died on 16 May as a result of injuries sustained in the assassination.[3] The assassination was blamed on the rebel Liberation Tigers of Tamil Eelam.[6] [7]