John Boynton Philip Clayton Hill (May 2, 1879 – May 23, 1941) was a U.S. representative from the 3rd Congressional district of Maryland, serving three terms from 1921 to 1927.

In 1915, Hill was an unsuccessful candidate for mayor of Baltimore, and served as delegate to the Republican National Convention in 1916.

He served as judge advocate for the Fifteenth Division, and attached to the Fourteenth Cavalry, Mexican border service, from August 26 to December 15, 1916.

[1] Hill was the only representative from Maryland, and one of only 62 House members, to vote against the 1924 Johnson-Reed Act, the law that placed severe quotas on immigration to the United States [3] During Prohibition, Hill planted some grape vines and apples trees in his yard, and renamed his house "Franklin Farms", since farmers were allowed to make wine and cider.

He was arrested and charged with the illegal manufacture of liquor, but the jury pronounced it "not intoxicating in fact", even though its alcohol content was more than 12%.