Sir Thomas Newcomen, 5th Baronet
Sir Thomas Newcomen, 5th Baronet was an Anglo-Irish baronet.
Newcomen was the son of Sir Robert Newcomen, 4th Baronet and Anne Boleyn. In 1676 he was made a member of the Privy Council of Ireland. He inherited his father's baronetcy in 1677. He was killed in fighting near Enniskillen around the time of the Battle of Newtownbutler. He was succeeded in his title by his son, Robert Newcomen.