Kolby

#3,577 for girls in 2025, 42 births · #1,222 for boys in 2025, 165 births
Given to boys 89.6% of the time

Showing
Show data for
Peak · boys
2001 · 739 births
Debut · boys
5 births
In top 100 · boys
never
of 146 years
Total births · boys
11,650
since 1968

Kolby over time

girlsboys

Rank within each sex, plotted together. Click any year to open it.

#1#10#100#1,000#10,000rank188019001920194019601980200020202016peak #2,672, 2000peak #359, 2001girlsboys
Hover or use arrow keys to read values by year; click or press Enter to open that year.

Gaps mean fewer than 5 babies received the name that year, so the SSA doesn't publish it.

Show data table
Yeargirlsboys
rankbirthsrankbirths
2025#3,57742#1,222165
2024#3,89238#1,262156
2023#3,42846#1,197167
2022#4,90727#1,237159
2021#5,09125#1,262151
2020#5,31423#1,144170
2019#5,16325#1,234153
2018#5,00726#1,086182
2017#4,14735#1,141166
2016#3,92338#950219
2015#4,14435#828272
2014#3,22650#776300
2013#3,36747#749304
2012#6,57619#791286
2011#4,15135#705325
2010#4,49432#684344
2009#4,67731#662371
2008#4,08938#618401
2007#5,89523#642378
2006#7,48216#669341
2005#6,82017#585387
2004#4,49230#493497
2003#4,41829#464543
2002#3,19644#384676
2001#3,25642#359739
2000#2,67255#542396
1999#2,67552#521407
1998#3,22238#550361
1997#4,00727#628274
1996#2,96640#673244
1995#3,35733#631267
1994#3,44832#713215
1993#3,42232#756191
1992#3,14436#705212
1991#4,32923#708205
1990#3,90926#819155
1989#3,56628#932119
1988#4,49619#916108
1987#4,66017#914106
1986#3,75722#1,01583
1985#3,98320#96390
1984#3,87420#1,32050
1983#10,2755#1,29651
1982—#1,32050
1981—#2,41820
1980—#1,65535
1979#8,0617#2,10424
1978#8,5626#2,20521
1977—#2,36119
1976—#2,24520
1975—#2,36118
1974—#2,12920
1973—#2,51315
1972—#2,81912
1971—#4,9075
1970——
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1968—#4,1365
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First appearance
1968

The first year at least five boys were named Kolby! It came in at #4,136, and was given to 5 baby boys.


Quietest stretch: 1968–1971, when fewer than 6 boys a year got the name.

Where Kolby is popular in 2016

  • Rank in state
  • Top 10
  • 11–50
  • 51–100
  • 101–500
  • 501+
  • Not published
Alaska: fewer than 5 boys named Kolby, so not publishedAKMaine: #235 for boys · 5 births · 1 in 908 boysMEVermont: fewer than 5 boys named Kolby, so not publishedVTNew Hampshire: fewer than 5 boys named Kolby, so not publishedNHWashington: #955 for boys · 5 births · 1 in 7,407 boysWAIdaho: fewer than 5 boys named Kolby, so not publishedIDMontana: fewer than 5 boys named Kolby, so not publishedMTNorth Dakota: fewer than 5 boys named Kolby, so not publishedNDMinnesota: fewer than 5 boys named Kolby, so not publishedMNIllinois: #1,311 for boys · 5 births · 1 in 12,834 boysILWisconsin: fewer than 5 boys named Kolby, so not publishedWIMichigan: fewer than 5 boys named Kolby, so not publishedMINew York: fewer than 5 boys named Kolby, so not publishedNYMassachusetts: fewer than 5 boys named Kolby, so not publishedMARhode Island: fewer than 5 boys named Kolby, so not publishedRIOregon: fewer than 5 boys named Kolby, so not publishedORNevada: fewer than 5 boys named Kolby, so not publishedNVWyoming: fewer than 5 boys named Kolby, so not publishedWYSouth Dakota: fewer than 5 boys named Kolby, so not publishedSDIowa: fewer than 5 boys named Kolby, so not publishedIAIndiana: fewer than 5 boys named Kolby, so not publishedINOhio: #897 for boys · 8 births · 1 in 7,415 boysOHPennsylvania: #852 for boys · 8 births · 1 in 7,404 boysPANew Jersey: fewer than 5 boys named Kolby, so not publishedNJConnecticut: fewer than 5 boys named Kolby, so not publishedCTCalifornia: fewer than 5 boys named Kolby, so not publishedCAUtah: fewer than 5 boys named Kolby, so not publishedUTColorado: #771 for boys · 5 births · 1 in 5,512 boysCONebraska: fewer than 5 boys named Kolby, so not publishedNEMissouri: #430 for boys · 14 births · 1 in 2,258 boysMOKentucky: #627 for boys · 5 births · 1 in 4,362 boysKYWest Virginia: fewer than 5 boys named Kolby, so not publishedWVVirginia: #716 for boys · 8 births · 1 in 5,202 boysVAMaryland: fewer than 5 boys named Kolby, so not publishedMDDelaware: fewer than 5 boys named Kolby, so not publishedDEArizona: fewer than 5 boys named Kolby, so not publishedAZNew Mexico: fewer than 5 boys named Kolby, so not publishedNMKansas: #581 for boys · 5 births · 1 in 3,132 boysKSArkansas: #554 for boys · 5 births · 1 in 2,875 boysARTennessee: #926 for boys · 5 births · 1 in 7,240 boysTNNorth Carolina: #1,118 for boys · 5 births · 1 in 10,395 boysNCSouth Carolina: #463 for boys · 8 births · 1 in 2,650 boysSCDistrict of Columbia: fewer than 5 boys named Kolby, so not publishedDCOklahoma: fewer than 5 boys named Kolby, so not publishedOKLouisiana: #722 for boys · 6 births · 1 in 4,093 boysLAMississippi: fewer than 5 boys named Kolby, so not publishedMSAlabama: #355 for boys · 14 births · 1 in 1,650 boysALGeorgia: #567 for boys · 15 births · 1 in 3,585 boysGAHawaii: #284 for boys · 5 births · 1 in 917 boysHITexas: #1,038 for boys · 19 births · 1 in 9,748 boysTXFlorida: #1,085 for boys · 10 births · 1 in 9,794 boysFL

Hover or tap a state for its numbers.

Top states · boys
  1. Maine#235 · 1 in 908
  2. Hawaii#284 · 1 in 917
  3. Alabama#355 · 1 in 1,650
  4. Missouri#430 · 1 in 2,258
  5. South Carolina#463 · 1 in 2,650

Best ever in a state: #104 in Vermont, 2004.

Show every state
StateRankBirthsShare
Maine#23551 in 908
Hawaii#28451 in 917
Alabama#355141 in 1,650
Missouri#430141 in 2,258
South Carolina#46381 in 2,650
Arkansas#55451 in 2,875
Georgia#567151 in 3,585
Kansas#58151 in 3,132
Kentucky#62751 in 4,362
Virginia#71681 in 5,202
Louisiana#72261 in 4,093
Colorado#77151 in 5,512
Pennsylvania#85281 in 7,404
Ohio#89781 in 7,415
Tennessee#92651 in 7,240
Washington#95551 in 7,407
Texas#1,038191 in 9,748
Florida#1,085101 in 9,794
North Carolina#1,11851 in 10,395
Illinois#1,31151 in 12,834
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Ranks are within each state; “1 in N” is out of the boys born there that year. The SSA only publishes a name in a state when 5 or more babies of one sex got it.

See more about Kolby
Momentum · boys
Holding steady
  • 40 spots since 2024 (#1,262 → #1,222)
  • 78 spots since 2020 (#1,144 → #1,222)
  • 394 spots since 2015 (#828 → #1,222)
  • Biggest jump: 357 spots in 1985 (#1,320 → #963)
  • Biggest drop: 191 spots in 2017 (#950 → #1,141)
Rise & fade · boys
33 yrs to peak
  • Debuted 1968
  • Peaked 2001 at #359 (739 births)
  • Births halved by 2006, 5 yrs later
Top of the charts · boys
Top 1,000 for 31 yrs
  • Top 10: never
  • Top 100: never
  • Top 1,000: 31 yrs · run 1987–2016
Share of babies · boys
1 in 2,629
  • Highest: 1 in 2,629 boys born in 2001 were named Kolby (0.04%)
  • Latest: 1 in 10,352 boys born in 2025 (0.01%)
Era · boys
The 2000s
  • 40.6% of all boys named Kolby (4,729) were born in this decade
Girls or boys?
Never flipped
  • The majority has never changed
all girlsall boys
Show by decade
DecadeBirthsBest rankAvg rank
1960s5#4,136 (1968)#4,136
1970s154#2,104 (1979)#2,627
1980s712#914 (1987)#1,275
1990s2,531#521 (1999)#670
2000s4,729#359 (2001)#542
2010s2,551#684 (2010)#894
2020s968#1,144 (2020)#1,221

All figures count published births only (names given to at least 5 boys in a year). Registrations before 1937 are incomplete, so early shares and totals run low.

Kolby in 2016

girls
#3,923
38 births · 1 in 46,632 girls
boys
#950
219 births · 1 in 8,665 boys

Top girls' names in 2016

  1. #1Emma19,550
  2. #2Olivia19,414
  3. #3Ava16,354
  4. #4Sophia16,185
  5. #5Isabella14,863
  6. #6Mia14,464
  7. #7Charlotte13,118
  8. #8Abigail11,796
  9. #9Emily11,006
  10. #10Amelia10,809
  11. #3,923Kolby38

Top boys' names in 2016

  1. #1Noah19,188
  2. #2Liam18,277
  3. #3William15,810
  4. #4Mason15,287
  5. #5James14,920
  6. #6Benjamin14,686
  7. #7Jacob14,559
  8. #8Michael14,145
  9. #9Elijah13,982
  10. #10Ethan13,855
  11. #950Kolby219
More about 2016

girls

1,772,022 girls got a published name in 2016; 1 in 46,632 of them was named Kolby, which outranked 79.2% of the 18,885 girls' names that year. The ten most popular names covered 8.3% of girls (24.6% in 1880, 7.0% in 2025).

Ranked beside Kolby
  1. #3,849Zamaya39
  2. #3,849Zyon39
  3. #3,849Zyra39
  4. #3,923Kolby38
  5. #3,923Aasiyah38
  6. #3,923Adalena38
  7. #3,923Adi38
  8. #3,996Adriel37
  9. #3,996Amyia37
  10. #3,996Anaelle37

Tied with 72 names at #3,923; 3 shown. Tied names share a rank, as in SSA's lists.

Biggest movers since 2015
Risers
  1. ↑ 2,389Kehlani#3,254 → #865
  2. ↑ 612Royalty#1,146 → #534
  3. ↑ 481Saoirse#1,448 → #967
  4. ↑ 396Ophelia#978 → #582
  5. ↑ 364Aitana#915 → #551
Fallers
  1. ↓ 542Caitlin#610 → #1,152
  2. ↓ 451Caitlyn#598 → #1,049
  3. ↓ 397Katelynn#652 → #1,049
  4. ↓ 382Kaitlynn#989 → #1,371
  5. ↓ 340Neriah#946 → #1,286

Among names in the top 1,000 of either year.

boys

1,897,738 boys got a published name in 2016; 1 in 8,665 of them was named Kolby, which outranked 93.3% of the 14,207 boys' names that year. The ten most popular names covered 8.2% of boys (44.2% in 1880, 8.0% in 2025).

Ranked beside Kolby
  1. #946Avi220
  2. #946Gordon220
  3. #946Javon220
  4. #950Kolby219
  5. #950Musa219
  6. #952Ira218
  7. #952Seamus218
  8. #954Brantlee217

Tied names share a rank, as in SSA's lists.

Biggest movers since 2015
Risers
  1. ↑ 2,327Kylo#3,231 → #904
  2. ↑ 355Creed#1,340 → #985
  3. ↑ 349Benicio#1,327 → #978
  4. ↑ 303Adonis#698 → #395
  5. ↑ 291Fox#1,035 → #744
Fallers
  1. ↓ 477Jonael#922 → #1,399
  2. ↓ 238Aaden#784 → #1,022
  3. ↓ 233Triston#950 → #1,183
  4. ↓ 223Freddy#993 → #1,216
  5. ↓ 207Chace#934 → #1,141

Among names in the top 1,000 of either year.

See the top 100 for 2016 →