Swathi Thirunal Rama Varma (16 April 1813 – 26 December 1846) was the Maharaja of the Kingdom of Travancore. He is also considered as a brilliant music composer and is credited with over 400 classical compositions in both Carnatic and Hindustani style.

A well-formulated code of laws, courts of justice, introduction of English education, construction of an observatory, installation of the first Government printing press, establishment of the first manuscripts library were amongst the many initiatives taken by Svāti Tirunāḷ‍, as a King, to modernise Travancore.

Svāti Tirunāḷ‍ was born into the Venad dynasty of the Matrilineal royal family of Travancore, which is now a part of Kerala, on 16 April 1813. He was the second child of Queen Gowri Lakshmi Bayi who ruled Travancore from 1810 to 1815, and Raja Raja Varma Koil Thampuran of Changanasseri Palace, and the elder son. While in the womb itself, he was proclaimed King and thus was referred to as Garbha Sreemaan. He was born in Svati star, and this is the reason why he was named Swathi Thirunal. He reigned under the regency of his mother from 1813 to 1815 and then under the regency of his maternal aunt Gowri Parvati Bayi until 1829. When he was just four months old, his mother invited Colonel John Munro, representative of the East India Company, and his officials and declared in the Durbar that she was entrusting the East India Company with the care of her child and expected the company to co-operate with him in future.

In 1829 Svāti Tirunāḷ‍ reached majority at 16 and assumed full powers of ruler and reigned as the Maharajah of Travancore until his death in 1846. He had an elder sister, Gowri Rukmini Bayi, whose children ascended the Travancore musnud consecutively. Her only daughter was the mother of Moolam Thirunal. He had a younger brother, Uthram Thirunal Marthanda Varma, who succeeded him in 1846 and ruled Travancore until his demise in 1860.

In 1829, at the age of sixteen, Maharajah Svāti Tirunāḷ‍ married Thiruvattar Ammachi Panapillai Amma Srimathi Ayikutty Narayani Pillai Thankachi, a famed beauty of the Thiruvattar Ammaveedu family, was an expert Carnatic singer and Veena player. Once there was a minor quarrel between Narayani Pillai Ammachi and her husband, the King. The quarrel continued for some days; the Ammachi approached Irayimman Thampi for a solution. According to researchers he then created the famous Malayalam Padam (song) Prananaathan Enikku Nalkiya and told the Ammachi to sing it loudly in the King's presence; after hearing it the King was pleased and they reconciled immediately. This particular work of Thampi is considered by experts as one of the most beautiful Shringara (erotic) Padams available in Malayalam. Together they had three children but in 1839 Narayani Pillai Ammachi died, leaving behind a son, Thiruvattar Chithira Nal Ananthapadmanabhan Chempakaraman Thampi. A few months later, for the care of the baby, the Maharajah married another lady called Neelamma Pillai Ammachi by adopting her into the Thiruvattar Ammaveedu. He later married Sundara Lakshmi in 1843, a Saiva Mudaliar dancer, after adopting her into Vadasseri Ammaveedu. The story of the dancer Sugandhavalli who didn't get along with the King's first wife, Narayani Pillai Thankachi, has been disproved by R.P. Raja as nothing but fiction in his research treatise 'New Light on Swathi Thirunal'. In 1845 the King constructed the Thanjavur Ammaveedu for his third consort. Sundara Lakshmi, a great devotee of Lord Ganapati and Kanjirottu Yakshi Amma, resided there until her death in 1856.

Svāti Tirunāḷ‍ was deeply interested in music right from childhood. Besides being an able ruler, he was a patron of music and was a musician himself. Researchers say that Svāti Tirunāḷ‍ affixed his compositions with the mudra Padmanabha , sarasijanaabha, etc. and its synonyms. His education in music started with the first lessons from Karamana Subrahmania Bhagavathar and Karamana Padmanabha Bhagavathar. Later, he studied music from the then English scholar, Thanjavur Subba Rao as well. He continued to learn music by listening to accomplished musicians and practising himself. He encouraged both broad systems of Indian music, Hindustani and Carnatic music, though he was essentially a connoisseur of the Carnatic music tradition. He is credited with composing over 400 compositions[9] in Carnatic and Hindustani music. Some of his favourite compositions were Padmanabha Pahi, Deva Deva, Devanke, Sarasijanabha and Sree Ramana Vibho. Svāti Tirunāḷ‍ was fluent in a number of languages including Malayalam, Sanskrit, Marathi, Telugu, Kannada, Hindustani, Bengali, Tamil, Oriya and English. This was a period when music and art were thriving in many parts of south India. The triumvirate of Carnatic music, Tyagaraja (1767–1847), Syama Sastri (1762–1827) and Muthuswami Dikshitar (1775–1835), lived and enriched music during this period. Svāti Tirunāḷ‍'s palace also was home to many musicians and artistes of the period, including the famous Thanjavur Quartet brothers, Tyagaraja's disciple Kannayya Bhagavathar, Ananthapadmanabha Goswami (a Maharashtrian singer known as Kokilakanthameru swami), Shadkala Govinda Marar, and many others.

The literary works of Maharajah Svāti Tirunāḷ‍ include Bhakti Manjari', Syanandurapuravarnana Prabandham, Padmanabhasatakam, Muhanaprasa Antyaprasa Vyavastha, Ajamila, Kuchela Upakhyanas and Utsava Varnana Prabandha.

As a monarch, Svāti Tirunāḷ‍ was incredibly hardworking and supremely committed to his kingdom and people. The appointment of General Cullen as the Resident of Travancore, was the beginning of the end for the Maharajah. Historian P. Shungunny Menon wrote: Resident Jerond Cullen assumed almost sovereign authority. Such was his oppressive intrusion in the administration. The king was made totally powerless. Compounding this atrocity was the machinations of his aide Krishna Rao, who schemed with Cullen for his own personal gain. What ever the reason, the Resident's intrusion in the administration was unbearable for the young King. To compound his problems, the deaths of his elder sister, father, wife Narayani and all three children (Narayani's) made the Maharajah distraught. He increasingly sought silence and solitude, weakening his mind and body. Thus, at the age of 33, Maharajah Swathi Thirunal died on 26 December 1846. The demise of Maharajah Svāthi Thirunāḷ‍ attracted the attention of even the foreign press. Allen's Indian Mail and Register of Intelligence of British &Foreign India, China, & All Parts of the East.