Thomas Quinn (1838 – 3 November 1897) was an Irish nationalist politician and a successful builder in London. A member of the Irish Parliamentary Party, he was Member of Parliament (MP) for Kilkenny City from 1886 to 1892 and Treasurer of the Irish National League and the Irish Land League of Great Britain.
In the Split in the Irish Parliamentary Party over the leadership of Charles Stewart Parnell, he began as a supporter of Parnell but changed allegiance to the Anti-Parnellite majority in May 1891.