Top 3 — Louisiana
From the Old English smitan, meaning to strike, Smith identified a metalworker or blacksmith. It is the most common surname in the United States overall. In Louisiana, it ranks second rather than first, displaced by Williams due to the state's demographic composition.
Derived from the given name William, itself from the Old Germanic Willahelm, meaning resolute protector. In Louisiana, Williams ranks first largely because of the state's substantial African American population, who adopted the surnames of English-speaking enslavers after emancipation. It is the third most common surname nationally but reaches its highest raw count in Louisiana relative to state population compared to most Southern states.
Meaning son of John, with John derived from the Hebrew Yohanan, meaning God is gracious. Johnson is the second most common surname nationally and ranks third in Louisiana. Its prevalence here reflects both Anglo-American settlement in northern Louisiana parishes and post-emancipation surname adoption by African American families statewide.
Name origins — top 20 surnames
Name origins - top 20 surnamesName origins — top 20 surnames
Heritage
Acadian Exiles, Creole Settlers, and the Names They Left Behind
Louisiana's French surname concentration traces directly to the Grand Derangement of 1755, when British forces expelled Acadians from Nova Scotia. Thousands resettled along the Bayou Teche corridor and in parishes like Lafayette, St. Martin, and Vermilion through the 1760s and 1770s, carrying family names that had already been established in Canada for over a century. Those same surnames, Landry, Broussard, Hebert, LeBlanc, Guidry, and Fontenot, remained geographically concentrated in southern Louisiana because the Cajun community was largely self-contained for generations. African American families in the state adopted surnames from English-speaking enslavers, which explains why Williams, Johnson, and Jackson rank disproportionately high compared to neighboring states with smaller Black populations.
Did you know? Guidry is a Louisiana signature surname because it links directly to Acadian resettlement in the Vermilion and Lafayette parish area. The name derives from a Germanic personal name, Widric, filtered through Norman French, and arrived through the Acadian migration of the 1760s.
Top 20 Most Common Last Names in Louisiana
Showing all 20 surnames
#1
Williams
welsh
54,506
1 in 89
#2
Smith
english
51,821
1 in 94
#3
Johnson
english
47,356
1 in 103
#4
Jones
welsh
35,409
1 in 138
#5
Brown
english
33,852
1 in 144
#6
Davis
welsh
27,532
1 in 177
#7
Jackson
english
25,552
1 in 191
#8
Thomas
english
23,632
1 in 206
#9
Hebert
french
21,391
1 in 228
#10
Miller
english
20,747
1 in 235
#11
Landry
french
20,495
1 in 238
#12
Broussard
french
18,519
1 in 263
#13
Leblanc
french
17,883
1 in 272
#14
Taylor
english
16,957
1 in 287
#15
Martin
french
16,892
1 in 288
#16
Wilson
english
16,529
1 in 295
#17
Lewis
welsh
16,323
1 in 298
#18
Harris
english
16,088
1 in 303
#19
Guidry
french
15,756
1 in 309
#20
White
english
15,670
1 in 311
Local Insight
Uniquely Louisiana
These family names rank far higher in Louisiana than nationally — a direct fingerprint of the state's specific immigration waves.
Ranked #19 in Louisiana versus #1708 nationally. That is 1689 spots higher here.
Guidry derives from a Germanic personal name, Widric, filtered through Norman French, and in Louisiana it is almost inseparable from Acadiana. Acadian families carried the name into southern Louisiana during the resettlement of the 1760s, and Vermilion and Lafayette parishes kept it anchored in Cajun communities for generations.
Ranked #21 in Louisiana versus #1818 nationally. That is 1797 spots higher here.
Fontenot derives from Old French fontenot, a diminutive of fontaine meaning a small spring or fountain, and in Louisiana it belongs especially to the old Opelousas district. Acadian families carried the name into St. Landry and Evangeline parish communities in the late 1760s, where it became one of the classic Cajun surnames.
Ranked #25 in Louisiana versus #2213 nationally. That is 2188 spots higher here.
Boudreaux is the Louisiana form of French Boudreau, and the Louisiana family is Acadian, tracing back to Michel Boudreau of La Rochelle and Acadia. In Louisiana the name is unmistakably Cajun, with strong roots in the Teche country and in Lafourche and Terrebonne parishes after the Acadian migrations of the 1760s and 1780s. It later became familiar enough in Cajun culture to appear as a stand-in name in Louisiana folk humor.
Ranked #12 in Louisiana versus #1252 nationally. That is 1240 spots higher here.
Broussard comes from French broussard, referring to someone who lived near brushwood or scrubland, and in Louisiana it is tied to the Attakapas country. Joseph Broussard dit Beausoleil, an Acadian militia leader, helped negotiate the resettlement of Acadian exiles around St. Martinville in the 1760s, anchoring the surname in Lafayette, St. Martin, and Iberia parishes.
Ranked #9 in Louisiana versus #823 nationally. That is 814 spots higher here.
Hebert derives from the Germanic Haribert, meaning 'army-bright,' and became one of the great Acadian family names before it became a Louisiana name. Hebert families were among the early French settlers in Acadia in the 1600s, and descendants resettled in southern Louisiana after the 1755 deportation, especially around Lafayette, St. Mary, and Assumption parishes.
Etymology
Louisiana Last Name Meanings: Occupational, Patronymic & Habitational
Occupational Names
Three of Louisiana's top 20 surnames are occupational: Smith (rank 2), Miller (rank 10), and Taylor (rank 14). That proportion is slightly below the national average for top-20 lists, reflecting the outsized presence of French Acadian patronymics that displace occupational names in the lower half of the ranking. Smith and Miller both have German-language equivalents that were sometimes anglicized by German Coast settlers along the Mississippi River in the 1720s.
Patronymic Names
Patronymics dominate Louisiana's top 20, accounting for at least twelve of the twenty surnames. English and Welsh patronymics like Williams, Johnson, Jones, and Davis reflect Anglo-American settlement in the northern parishes and post-emancipation surname adoption by African American families. French patronymics like Hebert, Landry, and Guidry reflect the Acadian resettlement of the 1760s in the southern parishes, giving Louisiana a dual-patronymic structure found in no other state.
Descriptive or Place-Based Names
Descriptive and habitational surnames account for four of Louisiana's top 20: Brown (rank 5), LeBlanc (rank 13), White (rank 20), and Broussard (rank 12). Brown and LeBlanc mean essentially the same thing in their respective languages, a coincidence that reflects Louisiana's bilingual naming heritage. Broussard, meaning one who lived near brushwood, is the only habitational name in the top 20 and is almost entirely unique to Louisiana at the national level.
Quick Answers
What is the most common last name in Louisiana?
What are the most common Cajun last names in Louisiana?
Sources
- U.S. Census Bureau: Frequently Occurring Surnames from the 2010 Census — The primary source for surname counts, ratios, and national rankings used throughout this page. Data reflects the 2010 decennial census surname file.
- Forebears Surname Distribution Database — Used to cross-reference state-level surname concentration percentages and national rank estimates for Louisiana-specific surnames including Guidry, Fontenot, and Boudreaux.
- Dictionary of American Family Names, Oxford University Press — Reference for surname etymologies, including Old English, Old French, and Germanic root words used in the meaning fields throughout this page.
- #1 Surname
- Williams
- People named #1
- 54,506
- 1 in every
- 89 residents
- Top origin
- English
- State population
- 4,533,372
- Census year
- 2010
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