Garrison is a distinctive boys' name in United States, ranking #1045 in 2010 with 185 recorded births. This places Garrison in the top 7% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 353 births ranking #566. In 2010, approximately 1 in every 10,370 boys born was named Garrison. FALLING Recent data shows the name is currently falling.