| Vichitra Chiraprabha | |
| House: | Chakri dynasty |
| Father: | Chulalongkorn (Rama V) |
| Mother: | Savang Vadhana |
| Birth Date: | 21 April 1881 |
| Birth Place: | Grand Palace, Bangkok, Siam |
| Death Date: | (aged) |
| Death Place: | Bangkok, Siam |
Princess Vichitra Chiraprabha (th|วิจิตรจิรประภา; ; 21 April 1881 - 15 August 1881) was a Princess of Siam (later Thailand). She was a member of the Siamese royal family, the daughter of Chulalongkorn.
Her mother was Queen Savang Vadhana, consort and half-sister of King Chulalongkorn (later become Queen Sri Savarindira, the Queen Grandmother). She was the eldest daughter and the third child of King Chulalongkorn and Queen Savang Vadhana together.[1] She was given the full name by her father as Vichitra Chiraprabha Adulyadirekratana Khattiyarajakumari (th|วิจิตรจิรประภา อดุลยาดิเรกรัตน ขัตติยราชกุมารี)
She died in infancy on 15 August 1881, at the age of 3 months.