MallowbyNames

Cadie

KAY-dee · Uncertain; likely a variant spelling of Katie or Cady, possibly a pet form of Catherine.

2025 rank (girls)
#14,942
Babies named in 2025
5
Peak popularity
2005
2025 frequency
1 in 321,453 girls
Usually for
Girls
Trend
Declining since 2008

Declining since 2008, #14,942 for girls today.

Popularity of Cadie since 1978

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

122436198020002020Most births 2007Girls
Data table (by decade)
DecadeGirls
1970s14
1980s111
1990s237
2000s283
2010s133
2020s47

Meaning & origin

Cadie is an uncommon and modern American name that first appeared in official records in 1978. It reached its peak popularity in 2005, though even then it was rare; that year, it ranked among lower tiers of the Social Security data. Since 2008, its frequency has been steadily declining, and by 2025 it was given to approximately 1 in every 321,453 newborn girls, placing it at rank 14,942. The name's spelling likely reflects a modern trend of substituting -ie for -y, giving a softer, more feminine feel. While its exact meaning is unclear, it is most commonly understood as a variant of Katie or Cady, both of which are themselves diminutives or respellings with probable roots in Catherine. Cadie has not been recorded in any top state lists, suggesting its use is scattered rather than regionally concentrated. Parents drawn to Cadie often also consider similar-sounding names like Sadie, Katie, and Callie. The name carries a friendly, approachable sound that fits well with current preferences for short, -ie-ending girl names.

Cadie is a modern English name, likely a respelling or variation of Katie (a diminutive of Catherine, from Greek Aikaterinē, meaning 'pure' or debated) or Cady (itself possibly from Irish surname Ó Cáida meaning 'descendant of Cáide', or an English nickname). The spelling 'Cadie' emerged in the late 20th century, influenced by the trend of -ie endings for girls' names, and has seen sporadic use in the United States since the late 1970s.

Nicknames & variants

Nicknames: Cady, Cade, Cadie-bug

Variants: Cady, Kadie, Kady, Catey

Sibling names for Cadie

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

Sisters: Katie, Molly, Lucy, Sadie, Ellie

Brothers: Jack, Charlie, Henry, Ben, Sam

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

C is for Cadie, our favorite little girl.

C is for Cadie…”

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

Make Cadie's book

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

Questions parents ask

What does the name Cadie mean?
The exact meaning of Cadie is uncertain. It is most likely a modern spelling variant of Katie, a diminutive of Catherine, which traditionally means 'pure' (from Greek katharos). Alternatively, it may derive from Cady, which could come from an Irish surname.
How popular is the name Cadie?
Cadie is a rare name. According to data from the Social Security Administration, in 2025 it ranked 14,942 with about 1 in 321,453 baby girls receiving the name. Its peak popularity was in 2005, and its use has been declining since 2008.
Is Cadie a boy or girl name?
Cadie is almost exclusively used as a girl's name in the United States.