Hydi is a variant of Heidi. In German use, Heidi carries the interpretation “of the nobility; serene; of good humor.”
Explained through its name family
The story
Published U.S. birth records include this spelling as early as 1970. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Hydi through the years
Babies since 1880
26
0 boys · 26 girls
Most popular year
2010
6 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
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Too few births to compare
Hydi in U.S. Social Security birth records, 1970–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.
By the numbers
The most recent published U.S. birth count for girls is 6 in 2010. Later missing counts do not mean the name went unused.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.