Koizumi

Koizumi (小泉) is a Japanese family name.

It can refer to a number of people, including the following members of the prominent Koizumi family:
*Junichiro Koizumi, former prime minister of Japan
**Junya Koizumi, a second-generation Diet member and the father of Junichiro Koizumi
**Kotaro Koizumi, an aspiring actor and the first son of Junichiro Koizumi
**Matajiro Koizumi, the grandfather of Junichiro Koizumi

Other individuals include:
*Eiko Koizumi, a Japanese beach volleyball player
*Gunji Koizumi, the founder of British Judo
*Kyoko Koizumi, a singer and actress
*Takashi Koizumi, a film director
*Patrick Lafcadio Hearn, a.k.a. Yakumo Koizumi

Koizumi Station is either
*Koizumi Station (Ehime) (古泉駅)
*Koizumi Station (Gifu) (小泉駅)

It can refer to a number of fictional characters, including:
*Akako Koizumi, character in "Magic Kaito"
*Mika Koizumi, character in "Choudenshi Bioman"
*Itsuki Koizumi, character in Suzumiya Haruhi no Yuuutsu otherwise known to most American fans as the anime, The Melancholy of Haruhi Suzumiya.