MallowbyNames

Heydi

HAY-dee · Of uncertain origin, possibly a variant spelling of Heidi, which is a diminutive of Adelheid, meaning 'noble'.

2025 rank (girls)
#6,546
Babies named in 2025
17
Peak popularity
2008
2025 frequency
1 in 94,545 girls
Usually for
Girls
Trend
Declining since 2007

Declining since 2007, #6,546 for girls today.

Popularity of Heydi since 1988

Babies named Heydi per year in U.S. Social Security records.

1429431990200020102020Most births 2008Girls
Data table (by decade)
DecadeGirls
1980s15
1990s69
2000s287
2010s209
2020s117

Meaning & origin

Heydi is a modern respelling of Heidi, a German name brought to global attention by Johanna Spyri's classic children's novel. The variant spelling began appearing in U.S. birth records in 1988, reflecting a broader cultural preference for phonetic and distinct spellings. It reached its peak popularity in 2008, then declined; by 2025 it ranked 6,546 with a 1-in-94,545 frequency. The trajectory shows a falling trend since 2007, making it a less common choice compared to the standard Heidi form. The name remains primarily used for girls and carries the understated elegance of its old Germanic root.

Heydi is a modern respelling of Heidi, itself a German diminutive of Adelheid (from Old High German adal 'noble' + heit 'kind, sort, estate'). The name Heidi gained international popularity through Johanna Spyri's 1880 novel 'Heidi', and spelling variants like Heydi emerged in the late 20th century as a means of individualization.

Nicknames & variants

Variants: Heidi, Heydee, Heidy

Sibling names for Heydi

Names that share Heydi's style, for a brother or sister.

Sisters: Sophie, Emma, Lena, Mia, Ava

Brothers: Liam, Noah, Ethan, Lucas, Oliver

A parent animal hugging its little one, the personalized name page

H is for Heydi, our favorite little girl.

H is for Heydi…”

In a Mallowby alphabet book, Heydi's letter becomes Heydi's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Heydi's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Heydi mean?
Heydi is a variant spelling of Heidi, which is a German diminutive meaning 'noble' originating from Adelheid.
How popular is Heydi today?
Heydi ranked 6,546 in the United States in 2025, with approximately 1 in 94,545 baby girls given the name that year.
Is Heydi a boy or girl name?
Heydi is almost exclusively used for girls.