| Consort: | yes |
| Saovabhark Nariratana | |
| Succession: | Princess consort of Siam |
| Reign: | 1872 – 21 July 1887 |
| Reign-Type: | Tenure |
| House: | Chakri Dynasty |
| Spouse: | Chulalongkorn |
| Issue: | Chandra Saradavara |
| Father: | Ladavalya, Prince Bhumindra Bhakdi |
| Mother: | Chin |
| Birth Name: | Princess Piu Ladavalya |
| Birth Date: | 26 January 1854 |
| Birth Place: | Bangkok, Siam |
| Death Place: | Bangkok, Siam |
Saovabhark Nariratana[1] (th|เสาวภาคย์นารีรัตน์;), born Princess Piu Ladavalya (th|ปิ๋ว ลดาวัลย์; ; 26 January 1854 – 21 July 1887) was a consort of Chulalongkorn, the King of Siam.
She was a daughter of Ladavalya, Prince Bhumindra Bhakdi and Lady Chin.