Bold Reason (1968–1985) was an American Thoroughbred racehorse and Champion broodmare sire.
He was bought as a yearling for $52,000 by William Levin at the 1969 Guggenheim dispersal sale, and was trained by Angel Penna Sr. As a three-year-old competing in the 1971 U.S.
After the Triple Crown races, Bold Reason picked up two wins on turf at Belmont Park.
[1] Bold Reason was entered in the Woodward Stakes, but was scratched after missing a number of workouts due to a bad knee.
Bold Reason died on November 14, 1985, at Samantha Farms in Old Westbury, New York.