Every name given to a US baby since 1880, ranked year by year — straight from Social Security Administration birth records. 105,966 names · 375,362,447 births · public domain.

Rex

#451 most common boys' name of all time · #980 across all names · >99% male / <1% female · used 1880–2025

Rank among boys
#451
Rank overall
#980 of 105,966
First appeared
1880 or earlier
Years on the list
146 of 146
All-time
60,590
Since 2016
3,794
Peak year
1952 #174
Best rank
#170 1951
Girls Boys peak 1,505/yr
18801900192019401960198020002020

Rex is in the records from the very first year available, so it was almost certainly in use before 1880 — the data simply doesn't go back further.

Year by year

YearGirlsBoysTotalRank
2025 — 281 281 #859
2024 — 320 320 #785
2023 — 368 368 #722
2022 — 380 380 #697
2021 — 380 380 #698
2020 — 377 377 #682
2019 — 410 410 #651
2018 — 421 421 #631
2017 — 434 434 #607
2016 — 423 423 #632
2015 — 374 374 #679
2014 — 389 389 #661
2013 — 391 391 #631
2012 — 385 385 #631
2011 — 386 386 #618
2010 — 332 332 #703
2009 — 303 303 #755
2008 — 274 274 #800
2007 — 236 236 #874
2006 — 252 252 #809
2005 — 237 237 #808
2004 — 182 182 #930
2003 — 182 182 #913
2002 — 154 154 #1,008
2001 — 116 116 #1,178
2000 — 112 112 #1,208
1999 — 137 137 #1,017
1998 — 151 151 #934
1997 — 152 152 #904
1996 — 139 139 #935
1995 — 157 157 #863
1994 — 167 167 #822
1993 — 178 178 #794
1992 — 207 207 #717
1991 — 220 220 #683
1990 — 232 232 #663
1989 — 224 224 #669
1988 — 247 247 #595
1987 — 231 231 #600
1986 — 232 232 #585
1985 — 261 261 #544
1984 6 258 264 #537
1983 — 246 246 #532
1982 — 265 265 #524
1981 — 268 268 #515
1980 5 300 305 #488
1979 7 260 267 #525
1978 — 255 255 #512
1977 — 291 291 #473
1976 — 283 283 #467
1975 — 296 296 #469
1974 — 297 297 #465
1973 — 324 324 #434
1972 — 373 373 #407
1971 — 473 473 #369
1970 — 507 507 #362
1969 — 478 478 #361
1968 — 515 515 #339
1967 — 581 581 #306
1966 — 718 718 #275
1965 — 787 787 #264
1964 7 957 964 #247
1963 — 983 983 #245
1962 — 1,133 1,133 #227
1961 10 1,269 1,279 #219
1960 6 1,314 1,320 #214
1959 5 1,283 1,288 #216
1958 8 1,243 1,251 #213
1957 7 1,326 1,333 #203
1956 6 1,452 1,458 #193
1955 — 1,400 1,400 #191
1954 5 1,380 1,385 #189
1953 6 1,345 1,351 #188
1952 7 1,498 1,505 #174
1951 — 1,503 1,503 #170
1950 — 1,069 1,069 #196
1949 — 959 959 #207
1948 — 904 904 #210
1947 — 846 846 #220
1946 — 662 662 #236
1945 — 486 486 #269
1944 — 574 574 #234
1943 — 614 614 #235
1942 6 521 527 #257
1941 — 558 558 #231
1940 5 547 552 #228
1939 — 564 564 #216
1938 — 628 628 #202
1937 — 601 601 #203
1936 — 612 612 #201
1935 6 647 653 #198
1934 — 631 631 #197
1933 — 626 626 #194
1932 6 580 586 #213
1931 — 520 520 #227
1930 — 540 540 #235
1929 — 492 492 #252
1928 6 519 525 #242
1927 8 518 526 #250
1926 — 552 552 #239
1925 9 553 562 #238
1924 5 589 594 #229
1923 — 584 584 #225
1922 — 615 615 #215
1921 5 591 596 #226
1920 — 614 614 #210
1919 — 523 523 #232
1918 — 509 509 #235
1917 — 471 471 #230
1916 — 461 461 #231
1915 — 401 401 #242
1914 — 334 334 #233
1913 — 243 243 #241
1912 — 164 164 #279
1911 — 82 82 #294
1910 — 65 65 #309
1909 — 68 68 #274
1908 — 64 64 #268
1907 — 48 48 #309
1906 — 61 61 #255
1905 — 46 46 #297
1904 — 33 33 #352
1903 — 43 43 #291
1902 — 46 46 #281
1901 — 29 29 #344
1900 — 59 59 #267
1899 — 29 29 #335
1898 — 39 39 #305
1897 — 31 31 #337
1896 — 35 35 #321
1895 — 34 34 #314
1894 — 30 30 #331
1893 — 25 25 #363
1892 — 28 28 #367
1891 — 24 24 #357
1890 — 30 30 #321
1889 — 23 23 #375
1888 — 28 28 #352
1887 — 28 28 #320
1886 — 26 26 #335
1885 — 17 17 #454
1884 — 13 13 #530
1883 — 15 15 #470
1882 — 13 13 #524
1881 — 7 7 #724
1880 — 13 13 #519