Thomas Kelly was an Irish Sinn Féin and later Fianna Fáil politician. He was a book and picture dealer before entering politics. He was a founder member of Sinn Féin and was elected to Dublin City Council in 1899. Kelly was arrested after the 1916 Easter Rising and sent to prison in England, and after becoming seriously ill, he was released back to Dublin.

The Easter Rising, also known as the Easter Rebellion, was an armed insurrection in Ireland during Easter Week in April 1916. The Rising was launched by Irish republicans against British rule in Ireland with the aim of establishing an independent Irish Republic while the United Kingdom was fighting the First World War. It was the most significant uprising in Ireland since the rebellion of 1798 and the first armed conflict of the Irish revolutionary period. Sixteen of the Rising's leaders were executed starting in May 1916. The nature of the executions, and subsequent political developments, ultimately contributed to an increase in popular support for Irish independence.