Thomas Walmsley, also known as T Walmsley, is an English musician based in Kettering. He is best known for being the bassist for English rock band Temples, which he co-founded with guitarist James Edward Bagshaw in 2012. Walmsley and Bagshaw had previously worked together in the band The Moons.

In September 2022, Walmsley released his debut solo single, “On the Ice”, under the name T Walmsley. His debut EP, Viva Lost Wages, was released in December 2022.

Walmsley’s last name is sometimes misspelled as “Warmsley” due to a misprint on Temples' debut album Sun Structures. This has since been corrected on the band’s later albums.