Joshua Thomas Bell (13 March 1863 – 10 March 1911) was an Australian barrister and politician.
Bell was the son of Sir Joshua Peter Bell, and his wife Margaret Miller, née Dorsey and was born in Ipswich, Queensland. Bell was educated at Brisbane Grammar School and University of Cambridge, where he became president of the union.
Bell was admitted to the English bar and was a marshal on the Northern Assizes circuit in 1888. In 1889 Bell returned to Australia and a year later became private secretary to Sir Samuel Griffith. In 1893 Bell was elected to the Queensland Legislative Assembly for the electoral district of Dalby and held this seat for the rest of his life. Bell was elected chairman of committees in 1902 and in September 1903 joined the Arthur Morgan ministry as minister for lands. William Kidston succeeded Morgan in January 1906 but Bell held his old position in the new cabinet until November 1907, and was also minister for railways from February to July of that year. Bell was minister for lands in the second Kidston ministry from February to October 1908, and then home secretary until 29 June 1909, when he was elected speaker.
In 1901, Bell unsuccessfully contested the federal seat of Darling Downs in Australia's first federal by-election, but he was defeated by William Henry Groom, the son of the original member.
Bell died on 10 March 1911 after a long illness. He had married in 1903 a daughter of the Honorable John Ferguson, who survived him with a son and a daughter. Bell had a state funeral and was buried in Toowong Cemetery next to his father.