Boy
Brett
As a boy's name, Brett traces back to Celtic, where it is understood to mean "A Breton". It belongs mostly to the 1980s at this point. These days, it is familiar to most people. The registry counts around 160,657 U.S. births under this name going back to 1900.
CelticA Breton
CelticFrom Brittany
Births by decade
1900s
0
1910s
0
1920s
10
1930s
39
1940s
548
1950s
7,364
1960s
26,142
1970s
29,602
1980s
42,330
1990s
36,192
2000s
14,934
2010s
3,496
Peaked in the 1980s · 160,657 total U.S. births since 1900