* Speeches and Writings: He was a powerful orator and prolific writer. He wrote numerous articles and speeches, most notably his "Speech at the Inauguration of the Irish Confederation" (1848), which was a pivotal moment in the Young Ireland movement.
* "The Memoirs of Thomas Francis Meagher, Vol. I." (1867): This is his autobiography, published posthumously. It covers his early life, his involvement in the Young Ireland Rebellion, and his subsequent exile to Tasmania.
* "A History of the Irish Rebellion of 1798" (1847): This is a detailed account of the rebellion and its aftermath, written during his time as a student at the University of Dublin.
Meagher's writings are significant for their insights into the Irish nationalist movement, the social and political climate of 19th-century Ireland, and the personal struggles of an individual caught in the turbulent times of his era.