Throughout the world, Lalantha (Lalantha 
) is a rare male first name. The forename Lalantha is characteristic of Sri Lanka, where it is quite a rare boy's name, and Indonesia, where it is a very rare masculine name. Much less frequently, Lalantha is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Lalantha | Indonesia, Sri Lanka, Australia, United States, Canada |
| lalantha senevirathna researcher |
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| lalantha leelarathna researcher |
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Dias, Liyanage, Nipunaka, Fernando, Warnakumara, Weeranga, Madhushan, Senaratne, Prasajith, Jayasekera, Munasinghe, Sandaruwan, Sirisenage, Senanayake, Brahmanage, Kadigamuwa, Rathnayake, Gunasinghe, Jayasinghe, Wijesinghe, Wijerathne, Dissanayake, Abeydeera, Senarath, Sathkumara, Sanjeewa, Silva, Akino, Peris, Ruwan, Gayan, Mendis, Kurera, Kumara, Perera, Peiris, Udayakumara, Gamage, Bandara, Pitigala, Desilva, Dilshan, Downing, Dunstan, Watudura, Madushan, Mudalige, Sandacan, Shyaman, and Samarasinghe