Robert Echlin (1674 – 20 November 1706) was an Irish Member of Parliament. He was the eldest son of Sir Henry Echlin, 1st Baronet, and his wife Agnes Mussen. His father, who outlived him, had been second Baron of the Court of Exchequer (Ireland), and was created a baronet in 1721. Although the family had influential connections, the premature death of Robert's grandfather seems to have left them in some poverty: Robert's father rebuilt the family fortunes and became a substantial landowner, with his principal seat at Clonagh Castle.