Popularity in Spain
Numbers
| Guillermo (masculine) | |||
| Year | Rank | Percent Used | |
| 2022 | #47 | 0.403 | |
| 2021 | #49 | 0.406 | |
| 2020 | #58 | 0.345 | |
| 2019 | #57 | 0.372 | |
| 2018 | #57 | 0.390 | |
| 2017 | #53 | 0.401 | |
| 2016 | #49 | 0.420 | |
| 2015 | #49 | 0.461 | |
| 2014 | #43 | 0.522 | |
| 2013 | #43 | 0.526 | |
| 2012 | #39 | 0.655 | |
| 2011 | #36 | 0.600 | |
| 2010 | #37 | 0.575 | |
| 2009 | #35 | 0.584 | |
| 2008 | #34 | 0.632 | |
| 2007 | #32 | 0.751 | |
| 2006 | #36 | 0.622 | |
| 2005 | #38 | 0.531 | |
| 2004 | #42 | 0.514 | |
| 2003 | #44 | 0.483 | |
| 2002 | #42 | 0.535 | |
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