Ernest A. Blood (October 4, 1872 in Manchester, New Hampshire, United States - February 5, 1955) was a high school and college men's basketball coach. Between 1915 and 1924 he coached Passaic High School to a remarkable 200-1 record. Passaic was unbeaten over more than five seasons, achieving a 159-game winning streak, a feat considered to be the longest winning streak in basketball history.
Blood coached St. Benedict's Prep from 1925 to 1950 to a 421-128 record. He briefly coached at West Point and Clarkson College as well. As a young man he coach several YMCA teams with incredible success.
Dr. Charles "Chic" Hess has written an excellent biography about "basketball's first great coach," Prof Blood and the Wonder Teams.