The baby name Gianmarco appears in baby name data for the United States from 1998 to 2020. It was most popular in 2004 with 54 babies given the name.
Over the period shown, Gianmarco has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1998 | 12 |
| 2001 | 16 |
| 2002 | 25 |
| 2003 | 23 |
| 2004 | 54 |
| 2005 | 14 |
| 2006 | 24 |
| 2007 | 6 |
| 2008 | 16 |
| 2009 | 19 |
| 2010 | 22 |
| 2011 | 10 |
| 2012 | 16 |
| 2013 | 22 |
| 2014 | 14 |
| 2015 | 18 |
| 2016 | 16 |
| 2019 | 14 |
| 2020 | 10 |