Cassidy Unisex
Name Meaning & Origin Pronunciation: KAS-i-dee //ˈkæsiˌdi//
Origin: Irish; English
Meaning: Irish: 'curly-haired'; English: 'descendant of the one-eyed'
Historical & Cultural Background
The name Cassidy has its roots in the Irish surname O'Cathasaigh, which translates to "descendant of Cathasach," with Cathasach meaning "vigilant" or "watchful" in Gaelic. The name evolved through various forms, including the anglicized version Cassidy, which became more common in the 19th century as Irish surnames were adopted as given names, particularly among Irish immigrants to English-speaking countries.
The transition from surname to first name reflects a broader trend in naming practices during this period, where familial connections were emphasized in personal identity. Historically, the name Cassidy is associated with the Gaelic nobility of Ireland, particularly in the province of Ulster.
The O'Cathasaigh clan was known for its leadership and influence in the region, contributing to the name's significance in Irish heritage. The name gained further recognition through various cultural references, including literature and music, which celebrated Irish identity and history.
Notably, the name appears in various forms in Irish folklore and storytelling, where characters embodying the traits of vigilance and watchfulness are often depicted. Culturally, Cassidy has been embraced in both Irish and broader Anglo-American contexts, symbolizing a connection to heritage and tradition.
The name carries connotations of strength and resilience, qualities that have resonated through generations. Additionally, the diminutive form Cassie has emerged as a familiar and affectionate variant, further embedding the name in familial and social contexts.
Overall, Cassidy reflects a rich tapestry of linguistic evolution, historical significance, and cultural resonance, marking its place in the lexicon of names.
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U.S. Historical Usage
The name Cassidy was first seen in the United States in 1969. Cassidy has ranked as high as #203 nationally, which occurred in 1999, and has been most popular in California, Texas, New York, Pennsylvania, and Florida. In the past 5 years the name Cassidy has been trending down compared to the previous 5 years.
Popularity Over Time (National)
Top States for Cassidy (2024)
| State | Births | Share |
|---|---|---|
| CA | 84 | |
| TX | 54 | |
| PA | 36 | |
| FL | 32 | |
| NY | 30 | |
| NC | 27 | |
| NJ | 27 | |
| OH | 26 | |
| GA | 24 | |
| IL | 24 | |
| VA | 21 | |
| MD | 20 | |
| MA | 18 | |
| MO | 16 | |
| WA | 14 |
Popularity Over Time (National) — Table
| Year | Births |
|---|---|
| 1969 | 5 |
| 1970 | 12 |
| 1971 | 17 |
| 1972 | 32 |
| 1973 | 28 |
| 1974 | 36 |
| 1975 | 54 |
| 1976 | 62 |
| 1977 | 72 |
| 1978 | 102 |
| 1979 | 108 |
| 1980 | 131 |
| 1981 | 157 |
| 1982 | 219 |
| 1983 | 358 |
| 1984 | 406 |
| 1985 | 416 |
| 1986 | 371 |
| 1987 | 396 |
| 1988 | 405 |
| 1989 | 482 |
| 1990 | 521 |
| 1991 | 610 |
| 1992 | 725 |
| 1993 | 1,028 |
| 1994 | 2,306 |
| 1995 | 3,042 |
| 1996 | 2,844 |
| 1997 | 3,143 |
| 1998 | 3,045 |
| 1999 | 3,395 |
| 2000 | 3,163 |
| 2001 | 3,029 |
| 2002 | 2,634 |
| 2003 | 2,235 |
| 2004 | 2,007 |
| 2005 | 1,833 |
| 2006 | 1,771 |
| 2007 | 1,656 |
| 2008 | 1,490 |
| 2009 | 1,359 |
| 2010 | 1,286 |
| 2011 | 1,126 |
| 2012 | 1,140 |
| 2013 | 1,274 |
| 2014 | 1,311 |
| 2015 | 1,236 |
| 2016 | 1,123 |
| 2017 | 1,002 |
| 2018 | 869 |
| 2019 | 865 |
| 2020 | 765 |
| 2021 | 655 |
| 2022 | 659 |
| 2023 | 617 |
| 2024 | 646 |