Miyo (written: 美代 or 美余) is a feminine Japanese given name. Notable people with the name include:

• Miyo Ichikawa (市川 美余, born 1989), Japanese actress
• Miyo Miyashita (宮下 美代, born 1931), Japanese hurdler
• Miyo Okamoto (岡本 三代, born 1978), Japanese football manager
• Miyo Yoshida (吉田 実代, born 1988), Japanese professional boxer

Miyō or Miyou (written: 美葉) is a separate given name, though it may be romanized the same way. Notable people with the name include:

• Miyo Yamada (山田 美葉, born 1976), Japanese handball player

Fictional characters

• Miyo Inbami (陰喰 三欲), a character in the manga series Kakegurui – Compulsive Gambler
• Miyo Kurahashi (倉橋 美代), a character in the light novel series Tokyo Ravens
• Miyo Masuko (増子 美代), a character in the anime series HappinessCharge PreCure!
• Miyo Takano (鷹野 三四), a character in the sound novel Higurashi no Naku Koro ni