Ignatius John O'Brien, 1st Baron Shandon,, known as Sir Ignatius O'Brien, Bt, between 1916 and 1918, was an Irish lawyer and politician. He served as Lord Chancellor of Ireland between 1913 and 1918.

James Henry Mussen Campbell, 1st Baron Glenavy,, was an Irish lawyer, politician in the British Parliament and later in the Oireachtas of the Irish Free State. He was also Lord Chancellor of Ireland.