Charles Hamilton Teeling (1778–1848) was an Irish political activist, journalist, writer, and publisher from Lisburn, County Antrim, Ulster.
[2] At the age of 16, he joined his elder brother Bartholomew Teeling in the Society of United Irishmen, formed in 1791 by Protestant reformers in Belfast.
With his brother-in-law John Magennis, the Teeling brothers helped connect the United Irishmen with the Defenders..[3] A vigilante response to Peep O'Day Boy raids upon Catholic homes in the mid-1780s, by the mid-1790s the Defenders, like the United Irishmen, developed into an extensive oath-bound fraternity.
He was arrested, and briefly held, again in the wake of Robert Emmet's abortive uprising in 1803, probably due to the involvement of his younger brother George.
In 1835, through the Northern Herald, Teeling helped launch the journalistic career of Charles Gavan Duffy, future Young Irelander and editor of 'The Nation.