Mitsuki (みつき, ミツキ) is the Japanese word for "three months" (三月). It is also a Japanese given name natively written in a variety of forms. While a unisex name, it is more commonly used by women.

Mitsuki can be written using different kanji characters and can mean:

• 三月, "three months"

as a given name

• 満月, "full, moon"
• 美月, "beauty, moon"
• 光月, "light, moon"
• 光希, "light, rare"
• 光揮, "light, wield"
• 光輝, "light, brightness"
• 充喜, "raise, rejoice"
• 参月, "three, moon"
• 参輝, "three, shine"

The name can also be written in hiragana or katakana.

with the given name Mitsuki

• Mitsuki Aira (ミツキ, born 1988), a Japanese techno-pop artist
• Mitsuki Endo (三貴, born 1992), a Japanese singer (former Kamen Rider Girls)
• Mitsuki Ichihara (充喜, born 1986), a Japanese footballer
• Mitsuki Koga (光揮, born 1975), a Japanese actor
• Mitsuki Oishi (参月, born 1988), a Japanese fashion model and actress
• Mitsuki Saiga (みつき, born 1973), a Japanese voice actress
• Mitsuki Saito (未月, born 1999), a Japanese footballer
• Mitsuki Sumoto (光希, born 2001), a Japanese figure skater
• Mitsuki Takahata (充希, born 1991), a Japanese actress and singer
• Mitsuki Tanimura (美月, born 1990), a Japanese actress
• Mitsuki Watanabe (三城, born 1987), Japanese footballer
• Mitski (born 1990), Japanese-American musician
• Mizyu (born 1998), a member of the Japanese idol group Atarashii Gakko!

With the given name Mitsuki

• Mitsuki, a character in the American animated sitcom Kappa Mikey
• Mitsuki, a minor character in the anime series Tenchi Universe
• Mitsuki, a character in the manga series Tokyo Babylon
• Mitsuki, the official mascot of Tsubasacon
• Mitsuki Aoyagi (美月), a character in the tokusatsu series Unofficial Sentai Akibaranger
• Mitsuki Bakugo (爆豪), a character in the manga series My Hero Academia
• Mitsuki Hayase (水月), a character in the adventure game and anime series Kimi ga Nozomu Eien
• Mitsuki Koyama (満月), a character in the manga and anime series Full Moon o Sagashite
• Mitsuki Rara (みつき), a character in the anime series Dual! Parallel Trouble Adventure
• Mitsuki Sanada (三月), a character in the anime series Dual! Parallel Trouble Adventure
• Mitsuki Sawatari (みつき), a character in the manga and anime series He Is My Master
• Mitsuki Yamamoto, a character in the game series Corpse Party
• Mitsuki Nase (美月), a character in the anime series Kyoukai no Kanata
• Mitsuki Kanzaki (美月), a character in the anime series Recently, My Sister Is Unusual
• Mitsuki Hoshikawa (みつき), a character in the anime series Himitsu no AiPri
• Mitsuki (Naruto) (巳月), a character in the manga series Boruto: Naruto Next Generations
• Mitsuki Izumi (三月), a character in the mobile game and anime franchise IDOLiSH7

with the surname Mitsuki

• Sohara Mitsuki (見月), a character in the manga series Heaven's Lost Property