Koichi Yamadera

Quality:

Kōichi Yamadera - Japanese actor, voice actor, singer and narrator. This person is the 6339^th most popular in the global Wikipedia ranking of people. Article “Koichi Yamadera” in English Wikipedia has 82.9 points for quality (as of July 1, 2025). The article contains 410 references and 21 sections.

In this language version of Wikipedia the article has the best quality. However, the most popular language version of this article is Japanese.

Achievements in all the time:

Global Wikipedia:

The 6339^th most popular in people.

In June 2025 the article “Koichi Yamadera” was edited by 4 authors in English Wikipedia and written by 17 authors in all languages.

Since the creation of article “Koichi Yamadera”, its content was written by 291 registered users of English Wikipedia and edited by 1377 registered Wikipedia users in all languages.

Kōichi Yamadera is on the 6339^th place in global ranking of people on Wikipedia in all the time.

The article is cited 425 times in English Wikipedia and cited 4536 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #5294 in May 2023
• Global: #4221 in May 2023

The highest popularity rank from 2008:

• Local (English): #67334 in May 2023
• Global: #949 in June 2021

There are 21 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, 2025 (including revision history and pageviews for previous years).

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

#	Language	Quality grade	Quality score
1	English (en) Koichi Yamadera		82.8571
2	Japanese (ja) 山寺宏一		71.4662
3	Chinese (zh) 山寺宏一		47.8691
4	Korean (ko) 야마데라 코이치		33.4652
5	Portuguese (pt) Kōichi Yamadera		29.7659
6	Thai (th) โคอิจิ ยามาเดระ		24.5463
7	Malay (ms) Kōichi Yamadera		24.1998
8	German (de) Kōichi Yamadera		24.1114
9	Spanish (es) Kōichi Yamadera		23.5738
10	Hungarian (hu) Jamadera Kóicsi		21.6493

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

#	Language	Popularity award	Relative popularity
1	Japanese (ja) 山寺宏一		12 669 597
2	English (en) Koichi Yamadera		1 308 446
3	Chinese (zh) 山寺宏一		332 278
4	Spanish (es) Kōichi Yamadera		86 960
5	Russian (ru) Ямадэра, Коити		62 025
6	French (fr) Kōichi Yamadera		43 585
7	Korean (ko) 야마데라 코이치		38 577
8	Italian (it) Kōichi Yamadera		34 846
9	German (de) Kōichi Yamadera		29 294
10	Polish (pl) Kōichi Yamadera		24 479

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

#	Language	Popularity award	Relative popularity
1	Japanese (ja) 山寺宏一		68 625
2	English (en) Koichi Yamadera		7 449
3	Chinese (zh) 山寺宏一		2 812
4	Russian (ru) Ямадэра, Коити		370
5	Spanish (es) Kōichi Yamadera		361
6	French (fr) Kōichi Yamadera		231
7	Italian (it) Kōichi Yamadera		210
8	Korean (ko) 야마데라 코이치		138
9	Arabic (ar) كويتشي ياماديرا		122
10	Portuguese (pt) Kōichi Yamadera		83

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

#	Language	AI award	Relative AI
1	Japanese (ja) 山寺宏一		647
2	English (en) Koichi Yamadera		291
3	Chinese (zh) 山寺宏一		89
4	Italian (it) Kōichi Yamadera		60
5	French (fr) Kōichi Yamadera		50
6	Russian (ru) Ямадэра, Коити		38
7	Spanish (es) Kōichi Yamadera		28
8	Dutch (nl) Koichi Yamadera		24
9	German (de) Kōichi Yamadera		22
10	Korean (ko) 야마데라 코이치		22

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

#	Language	AI award	Relative AI
1	Japanese (ja) 山寺宏一		12
2	English (en) Koichi Yamadera		4
3	Spanish (es) Kōichi Yamadera		1
4	Arabic (ar) كويتشي ياماديرا		0
5	Catalan (ca) Kōichi Yamadera		0
6	German (de) Kōichi Yamadera		0
7	Persian (fa) کوئیچی یامادرا		0
8	Finnish (fi) Kōichi Yamadera		0
9	French (fr) Kōichi Yamadera		0
10	Hungarian (hu) Jamadera Kóicsi		0

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

On 28 January 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2025–26 UEFA Champions League, Nipah virus, Doomsday Clock, UEFA Champions League, Elena Rybakina, Donald Trump, 2026 European Men's Handball Championship, killing of Alex Pretti, Kristi Noem, deaths in 2026.

In English Wikipedia the most popular articles on that day were: Ajit Pawar, Border 2, Sharad Pawar, Killing of Alex Pretti, Ilhan Omar, Sunetra Pawar, Todd Monken, Kristi Noem, Wonder Man (miniseries), Gregory Bovino.

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information