William Castle Rhodes (July 5, 1869 – February 5, 1914)[1] was an American football player and coach.

Rhodes played tackle at Yale University from 1887 to 1890 and was selected for the 1890 College Football All-America Team.

At Yale, he played on the 1888 Yale football team that was coached by Walter Camp and included five players who were later inducted into the College Football Hall of Fame: George Washington Woodruff, Amos Alonzo Stagg, Lee "Bum" McClung, Pudge Heffelfinger, and Pa Corbin.

[3][4] As captain of the 1890 team, Rhodes led Yale to a 32–0 win over Princeton in front of 25,000 spectators in Brooklyn.

The smile became a genuine grin, as one by one the teeth of the Princeton Tiger were drawn, until by a score of 32 to 0 the formidable beast lay helpless and humiliated.

[8] Prior to the 1890 Harvard–Yale game, one newspaper noted that Harvard's tackle would have to "look out" for Rhodes and questioned whether he could withstand "the hard knocks and blows which Yale's captain has the reputation of giving.

"[19] After 15 years of service on the Great Lakes, the steamer "William Castle Rhodes" was taken to New York in 1916 to serve the Atlantic Coast.