Ο

ja

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Ο

Quality:

Ο/ο - “omicron” or “omikron”, fifteenth letter of the Greek alphabet. Article “Ο” in Japanese Wikipedia has 17.3 points for quality (as of July 1, 2026). The article contains 4 references and 7 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.91 points.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Japanese) language version.

Since the creation of article “Ο”, its content was written by 44 registered users of Japanese Wikipedia and edited by 1265 registered Wikipedia users in all languages.

The article is cited 66 times in Japanese Wikipedia and cited 2852 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Japanese): #2859 in November 2021
  • Global: #282 in November 2021

The highest popularity rank from 2008:

  • Local (Japanese): #120 in November 2021
  • Global: #34 in November 2021

There are 50 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Omicron
41.8015
2Chinese (zh)
Ο
34.0835
3French (fr)
Omicron
33.0247
4German (de)
Omikron
29.2644
5Armenian (hy)
Օմիկրոն (տառ)
26.0252
6Slovak (sk)
Omikron
24.3528
7Hebrew (he)
אומיקרון
23.5785
8Simple English (simple)
Omicron
23.3645
9Vietnamese (vi)
Omicron
23.2243
10Malay (ms)
Omikron
22.6359
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Ο" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Omicron
3 840 790
2German (de)
Omikron
1 023 322
3French (fr)
Omicron
490 120
4Spanish (es)
Ο
431 662
5Russian (ru)
Омикрон
429 045
6Japanese (ja)
Ο
384 787
7Italian (it)
Omicron
250 436
8Chinese (zh)
Ο
219 198
9Polish (pl)
Omikron
181 789
10Dutch (nl)
Omikron
161 983
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Ο" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Omicron
6 274
2French (fr)
Omicron
737
3Spanish (es)
Ο
593
4Russian (ru)
Омикрон
571
5German (de)
Omikron
452
6Japanese (ja)
Ο
327
7Portuguese (pt)
Ο
294
8Italian (it)
Omicron
281
9Chinese (zh)
Ο
279
10Polish (pl)
Omikron
223
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Ο" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Omicron
223
2German (de)
Omikron
104
3French (fr)
Omicron
88
4Italian (it)
Omicron
65
5Dutch (nl)
Omikron
62
6Russian (ru)
Омикрон
58
7Japanese (ja)
Ο
44
8Danish (da)
Omikron
43
9Galician (gl)
Ómicron
37
10Hebrew (he)
אומיקרון
36
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Ο" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Omicron
1
2Italian (it)
Omicron
1
3Korean (ko)
Ο
1
4Portuguese (pt)
Ο
1
5Arabic (ar)
أوميكرون
0
6Belarusian (be)
О мікрон
0
7Bulgarian (bg)
Омикрон
0
8Catalan (ca)
Òmicron
0
9Czech (cs)
Omikron (písmeno)
0
10Danish (da)
Omikron
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Ο" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1French (fr)
Omicron
315
2English (en)
Omicron
228
3Russian (ru)
Омикрон
125
4German (de)
Omikron
98
5Spanish (es)
Ο
97
6Croatian (hr)
Omikron
92
7Chinese (zh)
Ο
82
8Italian (it)
Omicron
76
9Greek (el)
Όμικρον
73
10Polish (pl)
Omikron
67
More...

Scores

Estimated value for Wikipedia:
Japanese:
Global:
Popularity in June 2026:
Japanese:
Global:
Popularity in all years:
Japanese:
Global:
Authors in June 2026:
Japanese:
Global:
Registered authors in all years:
Japanese:
Global:
Citations:
Japanese:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
أوميكرون
beBelarusian
О мікрон
bgBulgarian
Омикрон
caCatalan
Òmicron
csCzech
Omikron (písmeno)
daDanish
Omikron
deGerman
Omikron
elGreek
Όμικρον
enEnglish
Omicron
eoEsperanto
Omikrono
esSpanish
Ο
etEstonian
Omikron
euBasque
Omikron
faPersian
امیکرون
fiFinnish
Omikron
frFrench
Omicron
glGalician
Ómicron
heHebrew
אומיקרון
hrCroatian
Omikron
huHungarian
Omikron
hyArmenian
Օմիկրոն (տառ)
idIndonesian
Omikron
itItalian
Omicron
jaJapanese
Ο
kaGeorgian
ომიკრონი (ასო)
kkKazakh
Омикрон
koKorean
Ο
laLatin
Omicron
ltLithuanian
Omikron (raidė)
msMalay
Omikron
nlDutch
Omikron
nnNorwegian (Nynorsk)
Omikron
noNorwegian
Omikron
plPolish
Omikron
ptPortuguese
Ο
roRomanian
Omicron
ruRussian
Омикрон
shSerbo-Croatian
Omikron
simpleSimple English
Omicron
skSlovak
Omikron
slSlovenian
Omikron
srSerbian
Омикрон (слово)
svSwedish
Omikron
thThai
โอไมครอน
trTurkish
Omikron
ukUkrainian
Омікрон (літера)
urUrdu
اومی کرون
viVietnamese
Omicron
zhChinese
Ο
zhminnanMin Nan
Ο

Popularity rank trends

Best Rank Japanese:
#120
11.2021
Global:
#34
11.2021

AI rank trends

Best Rank Japanese:
#2859
11.2021
Global:
#282
11.2021

Local popularity rank history

Global popularity rank history

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Ο/ο from Wikipedia articles about Greek alphabet, Ω/ω, Ξ/ξ, О/o and Α/α. Whereas reading the article about Ο/ο people most often go to Wikipedia articles on Greek alphabet, Ω/ω, Pi, Ξ/ξ and SARS-CoV-2 Omicron variant.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

es: Ο
ja: Ο
zh: Ο
pt: Ο
ko: Ο
simple: Omicron
zhminnan: Ο

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Japanese Wikipedia the most popular articles on that day were: 橋本愛 (1996年生), 超ときめき♡宣伝部, 塩貝健人, 鈴木彩艶, 泉里香, 谷口彰悟, 田中みな実, 佐野海舟, アーリング・ハーランド, 後藤輝樹.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information