Guyon is a boy name. It last appeared in U.S. Social Security records in 1966. Guyon first appears in the data in 1958 and reached its peak in 1958 (5 births). The chart below shows how the name has risen and fallen over time.
How popular is Guyon? (U.S. births per year)
U.S. births per year, 1958–1966 · hover or tap for the count and national rank · source: U.S. Social Security Administration