Isaac S. Mackie (23 September 1880 – 22 June 1963) was a Scottish-American professional golfer who played in the late 19th and early 20th century.

He took a job as professional at Fox Hills Golf Club on Staten Island soon after his arrival and remained in that post until 1914.

[1] He accepted a job as professional at the Fox Hills Golf Club on Staten Island soon after his arrival and remained in that post until 1914.

On 13 July 1905 he won an Open Tournament at the Van Cortlandt Park links by shooting 152 on a course that had been soaked with rain.

Canoe Brook Country Club's original course was designed by Jack Vickery and his assistant Alex Smith.

In 1916, Canoe Brook hired Walter Travis to completely overhaul and extend the original course under the supervision of Mackie who was appointed as head professional to replace former French champion, Louis Tellier, the preceding January.

[1] In the 1909 U.S. Open, contested at the Englewood Golf Club in New Jersey, Mackie played very well and finished tied for fourth place.