Muthuswami Dikshitar (March 24, 1775 – October 21, 1835) was a South Indian poet and composer and is one of the Musical Trinity of Carnatic music.
Dikshitar’s compositions, of which around 500 are commonly known, are noted for their contemplative nature and for capturing the essence of the raga forms through the vainika (veena) style that emphasises gamakas. They are typically in a slower speed (chowka kala). He is also known by his signature name of Guruguha. His compositions are widely sung and played in classical concerts of Carnatic music.
The musical trinity consists of Dikshitar, Tyagaraja (1767–1847), and Syama Sastri (1762–1827) although, unlike the Telugu compositions of the others, his compositions are predominantly in Sanskrit. He also had composed some of his Kritis in Manipravalam.
While he was still in his teens, his father sent him on a pilgrimage with a wandering monk named Chidambaranatha Yogi to gain musical and philosophical knowledge. Over the course of this pilgrimage, he visited many places in North India and acquired a broad outlook that is reflected in many of his compositions.