Sir Andrew Marshall Porter, 1st Baronet PC, QC (27 June 1837 – 9 January 1919) was an Irish lawyer and judge.

It was announced that he would receive a baronetcy in the 1902 Coronation Honours list published on 26 June 1902 for the (subsequently postponed) coronation of King Edward VII,[2] and on 24 July 1902, he was created a Baronet, of Merrion square, in the city and county of Dublin.

[3] A. M. Sullivan described him as "a fine lawyer of noble presence and true dignity" who did not tolerate any disturbance to the decorum of his Court.

As a judge, Sullivan ranked him as one of the four greatest he had ever known, and perhaps the equal of the celebrated Christopher Palles.

This article about a Member of the Parliament of the United Kingdom, for a constituency in Ireland between 1801 and 1922 is a stub.