Can first or last name uniqueness help to identify diaspora researchers from any country?

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First and last name national uniqueness statistics for the 25 countries or regions with the highest average percentage of last name in the country (2001-2021)_ A “national” first or last name is used only by researchers in one country_ A complete list of countries/regions is in the supplementary materi als (https://doi_org/10_6084/m9_figshare_21954467)_

Country/region	Authors with a first name	% of national first names	Average % of first name in country	First name rank	Authors with a last name	% of national last names	Average % of last name in country	Last name rank
Thailand	85,162	42%	81%	3	96,790	81%	88%	1
Japan	1,059,927	5%	87%	1	1,217,638	8%	87%	2
Lithuania	15,245	8%	55%	15	19,240	73%	86%	3
China	4,488,356	3%	85%	2	4,988,411	1%	83%	4
Turkey	217,560	6%	75%	4	255,292	26%	80%	5
Russian Fed.	137,269	4%	41%	31	452,961	29%	77%	6
Iran	277,009	4%	66%	7	350,691	23%	76%	7
Laos	1,179	60%	72%	5	1,370	65%	75%	8
Kazakhstan	18,780	24%	59%	14	27,596	57%	74%	9
Indonesia	98,259	20%	53%	17	121,959	35%	72%	10
Greece	71,132	5%	50%	19	101,776	38%	72%	11
Madagascar	2,084	25%	37%	38	2,950	48%	71%	12
Poland	163,794	3%	63%	10	199,191	33%	71%	13
Czech Republic	61,820	3%	39%	34	89,460	43%	70%	14
India	629,418	10%	61%	12	982,934	12%	69%	15
Georgia	3,615	5%	31%	56	6,628	36%	69%	16
Latvia	5,775	9%	40%	32	8,441	54%	69%	17
Finland	65,723	3%	47%	21	81,530	26%	67%	18
Hungary	47,033	8%	62%	11	59,104	24%	65%	19
Slovakia	24,042	3%	24%	81	33,917	46%	65%	20
Mongolia	2,335	38%	65%	9	3,101	37%	65%	21
Uganda	8,543	9%	14%	120	10,160	37%	64%	22
Romania	51,161	6%	37%	41	63,560	28%	64%	23
Nigeria	47,983	15%	44%	26	78,489	25%	63%	24
South Korea	514,026	5%	69%	6	556,771	1%	63%	25

First and last name national uniqueness statistics for the 25 countries or regions with the lowest average percentage of last name in the country/region_ A “national” first or last name is used only by researchers in one country_

Country/region	Authors with a first name	% of national first names	Average % of first name in country	First name rank	Authors with a last name	% of national last names	Average % of last name in country	Last name rank
Virgin Islands (UK)	26	0%	2%	191	36	8%	11%	176
Paraguay	1,683	2%	3%	186	1,990	5%	10%	177
El Salvador	814	1%	2%	192	947	5%	10%	178
Andorra	106	3%	6%	168	130	4%	10%	179
Barbados	357	3%	6%	170	436	6%	10%	180
New Zealand	50,477	2%	5%	175	63,946	4%	10%	181
Guatemala	1,968	2%	4%	182	2,199	6%	10%	182
Hong Kong, China	53,289	1%	8%	157	66,369	1%	10%	183
Montserrat	20	0%	5%	176	39	5%	10%	184
Costa Rica	6,122	2%	5%	178	6,996	2%	9%	185
Falkland Islands	69	0%	0%	199	88	6%	9%	186
Grenada	551	6%	8%	152	640	4%	9%	187
Panama	1,864	6%	9%	146	2,135	5%	9%	188
Virgin Islands (USA)	157	6%	8%	149	202	3%	9%	189
Bahamas	196	5%	7%	159	237	5%	8%	190
Cayman Islands	96	0%	1%	197	120	3%	8%	191
Jamaica	2,217	9%	13%	122	3,113	4%	8%	192
Bermuda	144	1%	2%	194	187	4%	8%	193
Puerto Rico	8,310	6%	10%	139	9,347	2%	8%	194
Dominican Republic	1,198	6%	9%	141	1,355	3%	7%	195
Honduras	1,175	3%	5%	173	1,345	3%	6%	196
Nicaragua	961	3%	5%	174	1,133	3%	6%	197
Cape Verde	247	8%	11%	133	279	3%	6%	198
Dominica	82	6%	10%	136	101	2%	5%	199
Macao, China	3,933	2%	3%	184	4,352	1%	2%	200