Trend of the Popularity of Rex as a Male Baby Name in the US

Updated on December 3, 2025.

Data Source: Social Security Administration (SSA).

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In 2024, there were 316 male babies that were named Rex in the US, which was 0.02% of the total number of male babies born in the US in 2024. Between 1980 and 2024, the name Rex peaked as a male baby name in the US in 2017 with a count of 434 babies, which was 0.02% of the total male babies born in the US in 2017.

The first chart below show the trend of the number of male babies in the US that were named Rex, and the second chart shows the percent of male babies in the US that were named Rex.

Trend of the Number of Male Babies who were Named Rex in the US

Trend of the Percentage of Male Babies who were Named Rex in the US

The table below below shows the trend of the number of male babies and the percentage of male babies born in the US who were named Rex from 1980 to 2024.

Trend of the Popularity of Rex as a Male Baby Name in the us

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Year Number of Male Babies Percent of Total Male Babies (%)
1980 300 0.02
1981 268 0.02
1982 266 0.02
1983 246 0.01
1984 258 0.01
1985 261 0.01
1986 232 0.01
1987 231 0.01
1988 247 0.01
1989 224 0.01
1990 232 0.01
1991 220 0.01
1992 207 0.01
1993 178 0.01
1994 167 0.01
1995 158 0.01
1996 139 0.01
1997 152 0.01
1998 151 0.01
1999 137 0.01
2000 112 0.01
2001 116 0.01
2002 154 0.01
2003 182 0.01
2004 182 0.01
2005 237 0.01
2006 252 0.01
2007 236 0.01
2008 274 0.01
2009 303 0.02
2010 332 0.02
2011 386 0.02
2012 385 0.02
2013 391 0.02
2014 389 0.02
2015 374 0.02
2016 423 0.02
2017 434 0.02
2018 420 0.02
2019 410 0.02
2020 377 0.02
2021 379 0.02
2022 380 0.02
2023 367 0.02
2024 316 0.02