| Suvabaktra Vilayabanna | |
| Full Name: | Suvabaktra Vilayabanna |
| House: | Chakri Dynasty |
| Mother: | Chao Chom Manda Pae Bunnag |
| Birth Date: | 2 May 1873 |
| Birth Place: | Grand Palace Bangkok, Siam |
| Death Place: | Bangkok, Siam |
Princess Suvabaktra Vilayabanna or Phra Chao Boromwongse Ther Phra Ong Chao Suvabaktra Vilayabanna (RTGS: Suwaphak Wilaiphan) (th|พระเจ้าบรมวงศ์เธอ พระองค์เจ้าสุวพักตร์วิไลยพรรณ) (2 May 1873 - 30 July 1930), was a Princess of Siam (later Thailand), the daughter of Chulalongkorn, King Rama V of Siam.
Her mother was Chao Chom Manda Pae Bunnag (later elevated to Lady (Chao Khun Phra) Prayuravongse), daughter of Lord (Chao Phraya) Suravongs Vaiyavadhana (son of Somdet Chao Phraya Borom Maha Si Suriyawongse). She had one elder sister and one younger sister:
Vilayabanna died on 30 July 1930, at the age of 57.
| Princess Suvabaktra Vilayabanna | Father: Chulalongkorn, King Rama V of Siam | Paternal Grandfather: Mongkut, King Rama IV of Siam | Paternal Great-grandfather: Buddha Loetla Nabhalai, King Rama II of Siam |
| Paternal Great-grandmother: Queen Sri Suriyendra | |||
| Paternal Grandmother: Queen Debsirindra | Paternal Great-grandfather: Prince Sirivongse, the Prince Matayabidaksa | ||
| Paternal Great-grandmother: Mom Noi Sirivongs na Ayudhya | |||
| Mother: Chao Chom Manda Pae Bunnag | Maternal Grandfather: Chao Phraya Suravongs Vaiyavadhana | Maternal Great-grandfather: Somdet Chao Phraya Borom Maha Sri Suriyawongse | |
| Maternal Great-grandmother: Klin Bunnag | |||
| Maternal Grandmother: Im Bunnag | Maternal Great-grandfather: unknown | ||
| Maternal Great-grandmother: unknown |