Yaovamalaya Narumala, the Princess of Sawankalok, was the Princess of Siam.
She was the daughter of King Chulalongkorn. Her mother was Ubolratana Narinaka, the Princess Akaravorarajgalya, daughter of Ladavalya, the Prince Bhumindrabhakdi and Mom Chinese Ladavalya na Ayudhya. She was given full name by her father as Yaovamalaya Narumala Sabasakon Galyani (Thai: เยาวมาลย์นฤมล สรรพสกนธ์กัลยาณี).
Foreign the royal duties, she was one of the executive vice-president of the Red Unalom Society, the major humanitarian organisation (later the Thai Red Cross Society), founded by Queen Savang Vadhana as maternal patron. Queen Saovabha Phongsri was appointed the first president, and Plien Phasakoravongs acted as the society secretary. She worked as the executive vice-president with the other princesses:
Queen Sukhumala Marasri
Suddha Dibyaratana, the Princess Sri Ratanakosindra
Chandra Saradavara, the Princess of Phichit
Srivilailaksana, the Princess of Suphan Buri
Ubolratana Narinaka, the Princess Akaravorarajgalya
Saisavalibhirom, the Princess Suddhasininat Piyamaharaj Padivaradda
Chao Chom Manda Kesorn (Rama V)
On 21 May 1905, she was given the royal title from her father as Princess of Sawankhalok (Thai: กรมขุนสวรรคโลกลักษณวดี).
She was given the rank of Krom Khun, the 4th level of the Krom ranks.
Princess Yaovamalaya Narumala died on 3 July 1909, at the age of 36.
She was a member of the Chakri Dynasty of Thailand.