Trinnie is a girl name. It last appeared in U.S. Social Security records in 1963. Trinnie first appears in the data in 1900 and reached its peak in 1922 (8 births). The chart below shows how the name has risen and fallen over time.
How popular is Trinnie? (U.S. births per year)
U.S. births per year, 1900–1963 · hover or tap for the count and national rank · source: U.S. Social Security Administration