Vimolnaka Nabisi (Thai: วิมลนาคนพีสี; RTGS: Wimonnaknaphisi; 2 October 1889 – 21 February 1892), was the Princess of Siam (later Thailand).

Her mother was Princess Dara Rasmi of Chiang Mai, daughter of Inthawichayanon and Thip Keson from the Chet Ton dynasty (also called the House of the Seven Lords).

Princess Vimolnaka Nabisi died on 21 February 1892, at age 2 years and 8 months.

Her death brought sadness to her father, and the royal family of both the Siamese and Chiang Mai, especially to her mother, Princess Dara Rasmi.

A portion was kept within the Royal Cemetery at Wat Ratchabophit, Bangkok.