Ronald Haigler (born 1953) is an American former basketball player and current high school basketball coach. He is best known for his collegiate career at the University of Pennsylvania between 1972–73 and 1974–75. A 6'8" power forward, Haigler helped guide the Quakers to several consecutive Ivy League titles as well as setting numerous offensive statistical records at Penn. He was named the first ever Ivy League Men's Basketball Player of the Year as a senior and was twice named the Philadelphia Big 5 Player of the Year.