Names distinctive to Sri Lanka

The list of names unique to the Democratic Socialist Republic of Sri Lanka*

Female forenames

NameUniqueness Prevalence rank
1. Thilini 100% 1.
2. Dilini 99% 2.
3. Gayani 54% 4.
4. Sachini 94% 13.
5. Nadeesha 50% 5.
6. Nadeeka 74% 9.
7. Chathurika 48% 7.
8. Harshani 44% 6.
9. Iresha 67% 11.
10. Shanika 31% 3.
11. Chathuri 98% 16.
12. Inoka 99% 17.
13. Dilani 61% 15.
14. Chamila 39% 8.
15. Niluka 96% 20.
16. Ruwani 99% 23.
17. Sanduni 100% 28.
18. Piyumi 100% 31.
19. Nisansala 33% 14.
20. Piumi 92% 33.
21. Hashini 100% 37.
22. Hasini 65% 24.
23. Achini 70% 27.
24. Nipuni 100% 42.
25. Mihiri 93% 40.

Male forenames

NameUniqueness Prevalence rank
1. Tharindu 89% 1.
2. Lahiru 84% 3.
3. Isuru 83% 5.
4. Gayan 53% 2.
5. Nuwan 65% 4.
6. Amila 55% 6.
7. Thilina 85% 8.
8. Supun 84% 10.
9. Chathura 92% 12.
10. Asanka 72% 9.
11. Janaka 69% 11.
12. Sameera 39% 7.
13. Ruwan 66% 14.
14. Chaminda 64% 16.
15. Hasitha 89% 21.
16. Indika 51% 13.
17. Chanaka 65% 17.
18. Gihan 79% 20.
19. Dhanushka 70% 19.
20. Sandun 88% 25.
21. Buddhika 54% 18.
22. Chamara 40% 15.
23. Charith 87% 27.
24. Pubudu 100% 31.
25. Pasindu 84% 30.

Surnames

NameUniqueness Prevalence rank
1. Kumara 62% 1.
2. Rathnayake 98% 2.
3. Wijesinghe 98% 3.
4. Rajapaksha 99% 5.
5. Chathuranga 82% 4.
6. Madusanka 93% 6.
7. Rathnayaka 99% 9.
8. Ekanayake 98% 8.
9. Lakmal 83% 7.
10. Amarasinghe 98% 10.
11. Madushanka 92% 11.
12. Sandaruwan 93% 12.
13. Edirisinghe 99% 13.
14. Munasinghe 98% 16.
15. Jayasekara 98% 17.
16. Fonseka 93% 15.
17. Karunarathna 100% 18.
18. Alwis 95% 19.
19. Dissanayaka 99% 22.
20. Sanjeewa 70% 14.
21. Madushan 88% 20.
22. Jayaweera 98% 23.
23. Karunarathne 100% 25.
24. Maduranga 92% 24.
25. Jayawardana 99% 26.

Distinctive names in
the related** countries

CountrySimilarity
Qatar 21%
United Arab Emirates (the) 20%
Bahrain 14%
Kuwait 13%
Oman 13%
Bangladesh 10%
Mauritius 10%

*The rank of the unique name is the geometric average of the name uniqueness and the name prevalence in the respective country. Name uniqueness is measured only by the exact grapheme form (not taking into account transliterational equivalents or phonetic similarities).

** Country similarity is the correlation of the relative frequency of the names shared by two countries (as measured by cosine similarity).