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|Subdivisions||Districts: 7, Municipalities: 20|
|• Governor||Tokihiro Nakamura (since December 2010)|
|• Total||5,676.23 km2 (2,191.60 sq mi)|
(June 1, 2019)
|• Density||240/km2 (610/sq mi)|
|ISO 3166 code||JP-38|
Ehime Prefecture (愛媛県, Ehime-ken) is a prefecture of Japan located on the island of Shikoku.  Ehime Prefecture has a population of 1,342,011 (1 June 2019) and has a geographic area of 5,676 km² (2,191 sq mi). Ehime Prefecture borders Kagawa Prefecture to the northeast, Tokushima Prefecture to the east, and Kōchi Prefecture to the southeast.
Until the Meiji Restoration, Ehime Prefecture was known as Iyo Province.  Since before the Heian period, the area was dominated by fishermen and sailors who played an important role in defending Japan against pirates and Mongolian invasions.
In 2012, a research group from the University of Tokyo and Ehime University said they had discovered rare earth deposits in Matsuyama. 
The prefecture includes both high mountains in the inland region and a long coastline, with many islands in the Seto Inland Sea. The westernmost arm of Ehime, the Sadamisaki Peninsula, is the narrowest peninsula in Japan.
As of 31 March 2020, 7 percent of the total land area of the prefecture was designated as Natural Parks, namely the Ashizuri-Uwakai and Setonaikai National Parks; Ishizuchi Quasi-National Park; and Hijikawa, Kinshako, Okudōgo Tamagawa, Sadamisaki Hantō-Uwakai, Saragamine Renpō, Sasayama, and Shikoku Karst Prefectural Natural Parks. 
Eleven cities are located in Ehime Prefecture:
These are the towns in each district:
The coastal areas around Imabari and Saijō host a number of industries, including dockyards of Japan's largest shipbuilder, Imabari Shipbuilding. Chemical industries, oil refining, paper and cotton textile products also are a feature of the prefecture. Rural areas mostly engage in agricultural and fishing industries, and are particularly known for citrus fruits such as mikan ( mandarin orange), iyokan and cultured pearls.
The sports teams listed below are based in Ehime.
The oldest extant hot spring in Japan, Dōgo Onsen, is located in Matsuyama. It has been used for over two thousand years.
These are anime set in Ehime Prefecture.
- Tokyo Love Story is a story with characters are from Ehime Prefecture.Therefore, a lot of shooting was done in Ehime. Baishinji Station is famous for being filmed.
- Shodō Girls was made based on the true story of a high school student in Shikokuchūō. A member of the calligraphy club began doing Performance calligraphy at shopping malls and events to liven up the local region. After that, the Shodō Performance Koshien ( 俳句甲子園) was held in 2008.
- Botchan is a novel written by Natsume Sōseki. It was based on his experience in Matsuyama. Movies, dramas, and manga are published based on the novel. Botchan Ressha and Botchan Stadium are associated with this.
- Saka no Ue no Kumo is written by Ryōtarō Shiba. The main characters are Akiyama Yoshifuru, Akiyama Saneyuki and Masaoka Shiki, all of whom are from Ehime prefecture. It was broadcast on NHK as a TV drama.
- Koi wa Go・Hichi・Go！ （ 恋は五・七・五！）is set in Haiku Koshien, which is actually performed. The shooting was done at a high school, university, and library in Ehime. The haiku of this movie was supervised by Itsuki Natsui, haiku poet from Ehime.
- Destruction Babies ( ディストラクション・ベイビーズ) is set in Ehime. This movie was made based on the true story that the director head from a person he met when he visited Matsuyama. The director won an award at the Locarno Festival in 2016, and the film was selected as semi-grand prix at the Three Continents Festival in 2016.
There are festivals in Ehime Prefecture.
- Uwajima Ushi-oni Festival is held for three days, with a parade of many Ushi-oni walking around the city, a traditional Uwajima dance, a fireworks display, and a run on the final day.
- Niihama Taiko Festival is the autumn festival in Niihama. The drum stand is lifted by about 150 men. It is one of the three biggest fight festivals in Japan.
- The Matsuyama Autumn Festival includes a mikoshi event called Hachiawase (鉢合わせ) which takes place near Dōgo Onsen and Isaniwa Shrine.
There are Hot Springs in Ehime Prefecture.
- Dōgo Onsen appears in the Nihon Shoki. This Hot Spring has three public baths: the main building, Tsubaki no Yu, and Asuka no Yu.
- Sora to Mori is a combined warm bath facility. There are hot springs, restaurants, and body care.
- Nibukawa Onsen is a hot spring located in Imabari. The source originates from the crevices of the Inugawa Valley in this hot spring town.
- Shikoku Railway (JR Shikoku)
Iyo Railway (Iyotetsu)
- Gunchū Line
- Takahama Line
- Yokogawara Line
- Matsuyama Inner Line
- Matsuyama Expressway
- Tokushima Expressway
- Takamatsu Expressway
- Kochi Expressway
- Nishiseto Expressway (also referred to as the Shimanami Kaidō)
- Imabari Komatsu Road
- Route 11
- Route 33 (Matsuyama- Kōchi)
- Route 56 (Matsuyama-Iyo-Uwajima- Sukumo- Susaki-Kōchi)
- Route 192 (Saijyo-Shikoku Chuo- Yoshinogawa- Tokushima)
- Route 194
- Route 196
- Route 197
- Route 317 (Matsuyama-Imabari- Onomichi)
- Route 319
- Route 320
- Route 378
- Route 380
- Route 437
- Route 440
- Route 441
- Route 494 (Matsuyama- Niyodogawa-Susaki)
- Kawanoe Port
- Niihama Port - Ferry route to Osaka
- Toyo Port - Ferry route to Osaka
- Imabari Port - Ferry route to Innoshima, Hakata Island, and international container hub port
- Matsuyama Port - Ferry route to Kitakyushu, Yanai, Hiroshima, Kure, and international container hub port
- Yawatahama Port - Ferry route to Beppu, Usuki
- Misaki Port - Ferry route to Oita
- Uwajima Port
Ehime Prefecture is making use of its long tradition of involvement with people overseas through international exchanges in areas such as the economy, culture, sports and education. 
- Dalian ( China)
- Liaoning ( China)
- British Columbia ( Canada)
- Queensland ( Australia)
- New South Wales ( Australia)
- Hawaii ( United States)
- 愛媛県の紹介 ＞ 愛媛県のシンボル. Ehime prefectural website (in Japanese). Ehime Prefecture. Archived from the original on 9 January 2008. Retrieved 9 September 2011.
- Nussbaum, Louis-Frédéric. (2005). "Ehime" in Japan Encyclopedia, p. 170, p. 170, at Google Books.
- Nussbaum, "Matsuyama" at p. 621, p. 621, at Google Books.
- Nussbaum, "Provinces and prefectures" at p. 780, p. 780, at Google Books.
- Chamberlain, Basil Hall. 1882. A translation of the "Ko-ji-ki" or Records of ancient matters. section V
- "Japan Discovers Domestic Rare Earths Reserve". BrightWire. Archived from the original on 2012-07-23. Retrieved 2012-05-10.
- 自然公園都道府県別面積総括 [General overview of area figures for Natural Parks by prefecture] (PDF) (in Japanese). Ministry of the Environment. 31 March 2020. Retrieved 23 September 2020.
- "International exchange activated with globalization". Ehime Prefecture. Retrieved 2018-10-27.
- Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. ISBN 978-0-674-01753-5; OCLC 58053128
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