In the 2010 Sri Lankan parliamentary election, in which the United People's Freedom Alliance , led by Mahinda Rajapaksa, retained power, the Tamil National Alliance, led by Rajavarothiam Sampanthan, won 2.9% of the popular vote and 14 out of 225 seats in the Sri Lankan parliament.
Votes and seats won by the TNA by electoral district
| Electoral District |
Votes | % | Seats | Turnout | TNA MPs |
|---|---|---|---|---|---|
| Ampara | 26,895 | 10.47% | 1 | 64.74% | Podiappuhamy Piyasena |
| Batticaloa | 66,235 | 36.67% | 3 | 58.56% | P. Ariyanethiran (ITAK) P. Selvarasa (ITAK) S. Yogeswaran (ITAK) |
| Jaffna | 65,119 | 43.85% | 5 | 23.33% | Suresh Premachandran (EPRLF) E. Saravanapavan (ITAK) Mavai Senathirajah (ITAK) S. Sritharan (ITAK) A. Vinayagamoorthy |
| Trincomalee | 33,268 | 23.81% | 1 | 62.20% | R. Sampanthan (ITAK) |
| Vanni | 41,673 | 38.96% | 3 | 43.89% | Selvam Adaikalanathan (TELO) Sivasakthy Ananthan (EPRLF) Vino Noharathalingam (TELO) |
| National List | 1 | M. A. Sumanthiran (ITAK) | |||
| Total | 233,190 | 2.90% | 14 | 61.26% | |
| Source:"Parliamentary General Election – 2010". Department of Elections, Sri Lanka. | |||||