Sir Tonman Mosley, 3rd Baronet, DL (1813–1890), was an English aristocrat, baronet and military officer in the Inniskilling Dragoons. He was a prominent Staffordshire landholder.^[1]

Sir Tonman Mosley was born on 9 July 1813^[1] at Rolleston Hall, Rolleston-on-Dove, Staffordshire, to Sir Oswald Mosley, 2nd Baronet, and Sophia Anne Every (died 1859), daughter of Sir Edward Every, 8th Baronet (1754–1786), and Mary Mosley (died 1826).^[2][3]

Mosley served in the 6th (Inniskilling) Dragoons in Ireland.

He succeeded his father as 3rd Baronet Mosley, of Ancoats, in 1871. He held the office of Deputy lieutenant for Staffordshire.^[1]

In 1847 Sir Tonman married Catherine Wood, a daughter of Rev. John Wood (died 1858), of Swanwick Hall, Swanwick, Derbyshire, and Emily Susanna Bellairs, eldest daughter of Abel Walford Bellairs, Esq. (1755–1839).^[4] They had the following issue:

• Sir Oswald Mosley, 4th Baronet (1848–1915), who succeeded in the baronetcy
• Tonman Mosley, 1st Baron Anslow (1850–1933), created Baron Anslow in 1915 but died without issue
• Ernald Mosley (1851–1933)

He died on 28 April 1890 at his residence of Rolleston Hall.^[1] He was succeeded in the baronetcy by his eldest son, Sir Oswald Mosley, 4th Baronet, who was the grandfather of fascist leader Oswald Mosley.