Mouyondzi (can also be written as Muyonzi or Muyondzi) is a district in the Bouenza Region of southern Republic of the Congo. The capital lies at Mouyondzi.

Moyondzi's population mostly consists of Beembe.

Towns and villages

• Bosso II
• Dingi
• Gamobalé
• Kibamba
• Kibiti
• Kingola
• Kingomo
• Kingouala
• Kinkouambala
• Madoungou
• Mingali
• Moudzanga
• Mouyondzi
• Ngolé
• N'kosso
• Tsiaki
• Tsomono
• Yamba