Kazuki Kosakai

{{Short description|Japanese comedian and actor}}

{{Expand Japanese| 小堺 一機|date=January 2025}}

{{Infobox comedian

| name = Kazuki Kosakai

| native_name = 小堺 一機

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| birth_date = {{birth date and age|1956|01|03}}

| birth_place = Ichikawa, Chiba, Japan

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| nationality = Japanese

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| years_active = 1977–present

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| children = Shōta Kosakai

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| notable_work = Lion no Gokigen'yoh

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| website =　[https://web.archive.org/web/20090228090249/http://www.asaikikaku.co.jp/profile/kosakai/]

| footnotes = Same year/generation as:
George Tokoro
Shoji Murakami
LaSalle Ishii

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}}

{{nihongo|Kazuki Kosakai|小堺一機|Kosakai Kazuki}} (born January 3, 1956) is a Japanese comedian and actor from Ichikawa, Chiba. He is attached to Asaikikaku.