Cognomen Moonesinghe (Moonesinghe 
) , around the world, is quite a rare surname. The family name Moonesinghe is habitual in Sri Lanka, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United Kingdom, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Sri Lanka, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
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| Moonesinghe | United Kingdom, United States, New Zealand, Sri Lanka, Australia |
| anil moonesinghe Sri Lankan politician (1927-2002), LK (b. 1927) |
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| susil moonesinghe Sri Lankan politician, LK (b. 1930) |
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| mangala moonesinghe Sri Lankan politician, LK (b. 1931) |
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| suneetha ramani moonesinghe researcher ORCID ID = 0000-0002-6730-5824 |
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Mr, Sonali, Ananga, Ajitha, Kapila, Kushan, Kishan, Previn, Rushil, Deepal, Gloria, Joshua, Johann, Joanna, Jeniya, Naresh, Nishan, Indree, Umanga, Mangala, Mahasen, Michael, Shehan, Megnan, Meghan, Udeni, Ms, Ron, Uma, Mark, Suri, Ruth, Rudy, Joan, Malki, Mevan, Sameera, Aushi, Bryan, Kavan, Ramal, Ranga, Rajan, Diana, Jimol, Tania, Nishi, Vinod, Chris, and Surangi