David Bell (1818-1890) was an Irish tenant-right activist who became both an Irish, and later in the United States a pro-Reconstruction, republican. A Secessionist Presbyterian minister, he was radicalised by his experience of the Great Irish Famine. Bell helped establish the Tenant League in Ulster, but increasingly despaired of constitutional methods. He was inducted into the Irish Republican Brotherhood by Jeremiah O'Donovan Rossa and drawn onto its executive council. In American exile from 1865, he sought to associate physical-force Fenianism with the Radical U.S. Republican agenda of black suffrage and Reconstruction.