Thomas Attwood Walmisley (1814–1856) was an English composer and organist, primarily associated with the Anglican church music tradition. He is best known for his contributions to choral and liturgical music, particularly in the genre of sacred choral works. Walmisley served as the organist at various institutions, including the Chapel Royal and St. Peter's Church in Brighton. His notable works include the anthem "O Taste and See," which remains a staple in Anglican church repertoire, and several settings of the Magnificat and Nunc Dimittis. Walmisley's compositions are characterized by their melodic beauty and harmonic sophistication, contributing significantly to the development of 19th-century English choral music. Walmisley's impact on music lies in his role in the evolution of church music during a period of significant change in English liturgical practices. His style influenced later composers and helped to establish a rich tradition of choral music that would be further developed by contemporaries and successors in the Anglican tradition. Despite his relatively short life, Walmisley's work continues to be performed and appreciated in church services and choral concerts today.