| Gamani Nanda Jayasuriya | |
| Order: | Minister of Health, Agriculture Development & Co-operatives. |
| Constituency Mp: | Homagama |
| Parliament: | Sri Lankan |
| Term Start2: | March 1960 |
| Term End2: | 1970 |
| Term Start3: | 1977 |
| Term End3: | 10 November 1987 |
| Predecessor2: | seat created |
| Successor2: | Wilfred Senanayake |
| Predecessor3: | Wilfred Senanayake |
| Successor3: | seat abolished |
| Birth Date: | April 30, 1924 |
| Birth Place: | Meegoda |
| Death Place: | Colombo |
| Nationality: | Sri Lankan |
| Occupation: | Politics |
| Relations: | Dayan Witharana |
| Children: | Prasanna, Ananda, Devika |
Gamani Nanda Jayasuriya (30 April 1924 - 26 April 1998) was a Sri Lankan politician. He was the former Cabinet Minister of Health, Agriculture Development, Food and Co-operatives, a Member of Parliament and former General Secretary of the United National Party. Jayasuriya was educated at Royal College Colombo.He was also the Chairman of H. Don Carolis & Sons.
His cousin son Dayan Witharana is a popular singer and photographer.[1]