Cary Travers Grayson (October 11, 1878 – February 15, 1938) was a surgeon in the United States Navy who served a variety of roles from personal aide to President Woodrow Wilson to chairman of the American Red Cross.

[3][4][5] He interned for a year at Columbia Hospital for Women in Washington, D.C.[6] After completing his medical studies, Grayson was appointed Acting Assistant Surgeon on July 14, 1903.

[3][4][6] In 1907, he was assigned to the Navy's Bureau of Medicine and Surgery and appointed Naval surgeon aboard the Mayflower, the presidential yacht of President Theodore Roosevelt.

[6] Grayson was involved in the conspiracy to hide the severity of Woodrow Wilson's October 1919 stroke from members of the government and from the public.

"While one might excuse Mrs. Wilson's actions on the grounds of wifely loyalty, Grayson's behavior during these days exceeded the bounds of physician responsibility.

[11] Before transferring to the Retired List on December 20, 1928, Admiral Grayson received the Navy Cross for exceptionally meritorious service as aide and physician to President Wilson.

He was also made Commander of the National Order of the Legion of Honor by the French government for his service to Wilson during the peace talks after World War I.

An avid horseman involved in the sport of Thoroughbred horse racing, in 1928 Grayson purchased Blue Ridge Farm.

In the year of his death, Grayson bred the mare On Hand to Kentucky Derby winner Brokers Tip to produce Market Wise.