MallowbyNames

Declan

DEK-lən · man of prayer, or full of goodness

2025 rank (boys)
#139
Babies named in 2025
2,570
Peak popularity
2019
2025 frequency
1 in 665 boys
Usually for
Boys
Trend
Declining since 2019

Declining since 2019, #139 for boys today.

Popularity of Declan since 1951

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

1.3k2.6k4k1960198020002020Most births 2019Boys
Data table (by decade)
DecadeBoys
1950s27
1960s70
1970s53
1980s145
1990s1,135
2000s7,268
2010s31,107
2020s18,742

Meaning & origin

Declan has become a well-liked choice in the United States, though its popularity has receded somewhat from its peak. The name first appeared on the U.S. charts in 1951 and rose steadily, reaching its highest rank of 139 in 2019. Since 2019, its usage has been on a downward trajectory. Despite the decline, it remains a familiar option, with about 1 in 665 boys receiving the name in 2025. Geographically, Declan is most popular in Wyoming, Vermont, and Delaware. Its Irish heritage gives it a distinct cultural resonance, and the connection to Saint Declan adds historical depth. Parents drawn to names with a strong Celtic background and a modern, accessible sound often consider it. Although it is falling in rank, Declan has maintained a solid foothold over the past decade and remains more common than many of its Celtic counterparts.

Declan is the Anglicized form of the Irish name Deaglán, which is of uncertain meaning. It may derive from *deagh-* meaning 'good' and *lán* meaning 'full', together 'full of goodness', or from *deacair* ('difficult, troublesome') combined with *lán* ('full'), with the possible sense of 'full of trouble'. The name is historically associated with Saint Declan, a 5th-century Irish bishop who founded the monastery of Ardmore in County Waterford and is one of the pre-Patrician saints of Ireland. The name was relatively rare outside of Ireland until the late 20th century, when it gained international popularity.

Where Declan is most popular

Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k boystoo few births

Declan” around the world

Where Declan lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • France

    5

    babies in 2024

  • Ireland

    11

    babies in 2025

  • New Zealand

    26

    babies in 2025

Sources: INSEE (France) · CSO Ireland (Ireland) · NZ Dept of Internal Affairs (New Zealand).

Nicknames & variants

Nicknames: Dec, Deck, Dek

Variants: Deaglán, Deaglan

Sibling names for Declan

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

Sisters: Maeve, Shea, Aoife, Kiera, Saoirse, Alanna, Aria, Brenna, Bridget, Cadence, Ciara, Darcy, Eileen, Quinn, Sheena, Teagan, Adalyn, Ailene, Aislinn, Alannah, Allana, Aubree, Ayleen, Bellamy, Bree, Bridgit, Brigette, Brigid, Brigit, Brinley, Bryn, Cailin, Campbell, Danika, Dara, Darby, Darcie, Deidra, Deidre, Deirdre, Everleigh, Evyn, Fiona, Harmony, Kadence, Kallie, Keeley, Keva, Leigha, Mckenna, Moira, Raegan, Regan, Rosaleen, Shae, Shavon, Shay, Siobhan, Una, Wrenley, Aaralyn, Adalie, Addelyn, Aislin, Aisling, Aislyn, Aislynn, Analee, Arabelle, Bryna, Brynley, Brynnlee, Caeli, Caelyn, Carra, Carrigan, Catelyn, Ceara, Ceola, Ciana, Coreen, Corrin, Darianna, Delaina, Delani, Delany, Diedra, Diedre, Emberlynn, Emori, Enya, Erynn, Fallyn, Falon, Halston, Hennessy, Irelyn, Irelynn, Irish, Journi, Kaeli, Kaelin, Keaira, Keara, Keelin, Keena, Kenadie, Kenna, Kensington, Kerin, Kinlee, Kinsleigh, Kinzlee, Leana, Mairead, Maylin, Meara, Neve, Oona, Raelee, Ragan, Raylee, Reegan, Rooney, Rori, Roslynn, Rozlyn, Ryanne, Rylynn, Scotlyn, Seana, Seanna, Sinead, Taegan, Tarah, Teagen, Teegan, Teigan, Tierney, Treasa, Tresa, Verity, Adlee, Ailen, Ailin, Ailish, Alainna, Allanah, Ambree, Analynn, Anistyn, Aslyn, Aubery, Baleria, Bentleigh, Berkleigh, Berlyn, Bexlee, Bostyn, Brenlee, Bridgid, Briel, Briget, Brynnleigh, Cadance, Caelin, Caitlan, Caitrin, Cambri, Caylen, Caylyn, Chevonne, Coralyn, Darra, Daylee, Delanee, Dierdre, Dilyn, Dineen, Duana, Eily, Eleen, Emree, Evanna, Evony, Falyn, Farren, Fionna, Flannery, Graceyn, Henleigh, Inis, Jaylinn, Jazell, Kaleen, Karrigan, Kearra, Keera, Keirah, Kerigan, Kiely, Kolette, Kynsley, Lennyn, Locklyn, Logann, Loghan, Loxley, Maddyx, Madigan, Maelani, Maeven, Maevyn, Mairin, Malon, Malone, Marelyn, Marney, Mavery, Morna, Morrigan, Murriel, Neala, Niva, Oaklie, Paislie, Raedyn, Raegen, Raelin, Raelynne, Raeven, Ragen, Raylie, Reaghan, Reesa, Reghan, Renlee, Renleigh, Reverie, Rheagan, Rianne, Roanne, Rorie, Rowynn, Sayla, Shailyn, Shealynn, Sheana, Souline, Tatumn, Teaghan, Tedra, Teghan, Tiegan, Tinlee, Valena, Addley, Adilee, Aelyn, Ailis, Aine, Aizlyn, Alannie, Amberle, Anberlin, Arilynn, Ashleen, Ashlinn, Aslin, Aslynn, Aubreana, Audrinna, Avaline, Avereigh, Averianna, Aylene, Braelee, Brealyn, Breena, Brennah, Breslin, Breslyn, Brexlee, Brilyn, Brylei, Camarie, Catelin, Cearra, Ceili, Ceira, Chivon, Ciarah, Connelly, Coraleigh, Corryn, Dalaina, Dalayza, Daly, Darrah, Declynn, Devoiry, Dierdra, Edana, Eilee, Eilis, Eilyn, Emaree, Enda, Erinne, Eveleen, Eyleen, Farryn, Fianna, Gelsey, Gwendalynn, Haelynn, Haeven, Halyn, Harlowe, Hazleigh, Hennessey, Irelynd, Isolde, Jaeleigh, Jaselyn, Jaylianna, Jazzlin, Jernee, Joscelin, Journiee, Kadince, Kaileen, Karenna, Karlei, Kearney, Keatyn, Keeva, Keilin, Kella, Kendalyn, Kenlei, Kentley, Kerilyn, Kerina, Keyleigh, Kieley, Kierah, Kieryn, Koralee, Kynnadi, Laekyn, Lenay, Lexiana, Lillyonna, Loralye, Lynnix, Madyn, Maeley, Maelin, Mailin, Mailynn, Malynn, Maybree, Mckinna, Meeghan, Mersadie, Milynn, Murphie, Myelle, Mylene, Oria, Pegeen, Quinlee, Quinlynn, Quynn, Ralynn, Reigan, Rheana, Riann, Rieley, Shanah, Shaylon, Shevon, Siddalee, Sigourney, Sinclaire, Skarlette, Suttyn, Tarra, Tinslee, Torryn, Winsley, Brayli, Carlei, Eavan, Emberli, Erilyn, Evanne, Finola, Jezlyn, Kourtlynn, Malyn, Mckinzey, Paytan, Rhealynn, Abaigeal, Abiageal, Abrina, Addaleigh, Addalyne, Addylynn, Adelee, Adylin, Aftan, Ahilyn, Aibhlinn, Aidaly, Aileena, Airyn, Alanee, Aleynah, Allahna, Alonnah, Alonnie, Anaveah, Andilyn, Annalei, Annleigh, Arryn, Artasia, Avaleen, Avynn, Aylinn, Ayslin, Azlin, Braeley, Branna, Brayah, Breane, Breella, Breely, Brekyn, Brenlyn, Briena, Brigitt, Brynnan, Burklee, Cadi, Caelie, Caileen, Cait, Caleen, Caliann, Cambre, Ceana, Chasady, Cheila, Chesnie, Ciaira, Conleigh, Copelynn, Creasie, Dailin, Deidrea, Deklynn, Delainy, Deslyn, Deveney, Devri, Dylanie, Ellicia, Erynne, Espyn, Ethne, Evanie, Falan, Fallan, Francely, Graclyn, Graelyn, Graelynn, Greysi, Hadlyn, Hartlynn, Hayleen, Henessy, Hillarie, Ileigh, Jaydalyn, Jenavee, Jenaveve, Kacelyn, Kampbell, Karagan, Karigan, Kaselyn, Kassity, Kearie, Keelia, Keilynn, Kennede, Kenzlei, Kerensa, Keslee, Khaylee, Kierstynn, Kileen, Kinzlie, Kopelyn, Koralynn, Korianna, Kwynn, Kynzli, Lachlyn, Laklynn, Laurelyn, Lenzi, Lochlyn, Lovelee, Macaila, Madailein, Mairyn, Makenleigh, Marren, Maybrie, Mayella, Mayerly, Meaghen, Meryn, Mirren, Noralynn, Novaly, Paislea, Payslie, Phallon, Preslea, Quinne, Quinnlee, Raelan, Raeonna, Rainelle, Realynn, Reganne, Renezmae, Reylynn, Rhaelyn, Rheanne, Rhilee, Rilynne, Rotha, Sabryn, Shawneen, Shealee, Shealeigh, Shevaun, Shevawn, Shevonne, Shivon, Shivonne, Tagan, Tallyn, Talulla, Talullah, Teeghan, Thailyn, Trulee, Yarlin

Brothers: Finn, Cian, Liam, Sean, Patrick, Aidan, Barrett, Brendan, Conner, Connor, Conor, Desmond, Donovan, Easton, Grayson, Ian, Nolan, Owen, Weston, Aidyn, Baron, Bowen, Brennan, Brennen, Broderick, Callahan, Callan, Callum, Chadwick, Coleman, Corbin, Cullen, Davin, Derry, Donavan, Donavon, Donn, Doran, Dorsey, Eamon, Ean, Egan, Finnegan, Finnian, Flynn, Gannon, Grady, Huxley, Kallan, Keagan, Keegan, Keelan, Keenan, Kegan, Kellan, Kellen, Kendrick, Kenyon, Kieran, Killian, Lawson, Madden, Marshal, Mccoy, Merrick, Nevin, Nigel, Olan, Oran, Oren, Orin, Patric, Quentin, Reid, Rian, Ronan, Rory, Rowen, Seamus, Shaine, Shayne, Sullivan, Torin, Vander, Aaden, Adair, Adyn, Aedan, Avion, Brannon, Brendyn, Brennon, Breon, Brexton, Brodrick, Brogan, Caelan, Calin, Carlin, Cavan, Cavin, Cayde, Cillian, Clancy, Conan, Conley, Connell, Cormac, Cortland, Corwin, Creighton, Curley, Deegan, Dempsey, Desmon, Devlin, Dezmond, Donavin, Dutton, Eamonn, Eiden, Ennis, Evin, Farrell, Farris, Ferris, Finnick, Finnigan, Fitzgerald, Garvin, Graydon, Griffen, Hagan, Hogan, Kaelan, Kalin, Kallen, Kayne, Keane, Kelan, Kendric, Kennan, Kervin, Kerwin, Kevan, Kiernan, Kilian, Kyran, Lathan, Lavaughn, Lochlan, Logen, Macklin, Niel, Noland, Nolen, Nyle, Oneal, Oneil, Orie, Oshea, Quin, Quinlan, Rogan, Ryon, Shamus, Talan, Teague, Tiernan, Tully, Aceyn, Adian, Anden, Aydrian, Bowden, Brenan, Broadus, Bron, Caelen, Cailen, Callaghan, Carney, Carrell, Carston, Cashel, Chael, Colman, Con, Conlan, Connar, Corwyn, Cullin, Curran, Curren, Daegan, Daelan, Daelin, Dallan, Daxtyn, Deagan, Decklyn, Declyn, Dermot, Derrian, Devlyn, Dillen, Dillinger, Donivan, Donley, Donnel, Donnovan, Donoven, Donovin, Donovon, Dorrian, Doyal, Dravin, Dugan, Eagan, Ehren, Enis, Erion, Everhett, Farrel, Ferrel, Findley, Finian, Fintan, Galvin, Garron, Gorman, Graeson, Hudsen, Huxlee, Jaxston, Jevan, Kaelen, Kailan, Kalum, Kavan, Keagen, Keaghan, Kean, Keanan, Keeghan, Keenon, Keifer, Keigan, Keiran, Keiron, Kenner, Keygan, Khyson, Kieren, Kieron, Leiland, Louden, Lowry, Maclain, Macoy, Maddon, Malachy, Mannix, Maverik, Nevan, Neven, Nylan, Padraic, Padraig, Paxon, Paxtyn, Phelan, Quinnton, Redmond, Roark, Rockne, Seann, Shandon, Shaughn, Shayn, Sheamus, Shean, Stiles, Tarin, Torren, Trevyn, Tydus, Tynan, Adain, Aengus, Airon, Arran, Arren, Ashdon, Bearett, Bexton, Bohden, Bowyn, Braelen, Braycen, Breccan, Breland, Brenen, Brennin, Broderic, Bryor, Cadon, Caellum, Cailan, Casten, Caton, Caven, Chasten, Cohan, Colan, Colden, Colyn, Conall, Conlin, Coren, Cowen, Daimian, Danis, Decklin, Dolan, Drelyn, Eilan, Emrick, Erron, Esker, Evrett, Faolan, Farron, Fin, Finan, Findlay, Finnan, Garvey, Gavan, Gearold, Gleason, Griffyn, Hendryx, Jamason, Jaymin, Jourden, Kaegan, Kailand, Kairon, Kasten, Kaynan, Keagon, Kealan, Keefe, Keefer, Keegen, Keelen, Keighan, Kerney, Kerrick, Keynan, Khyrin, Kienan, Kinney, Konor, Kullen, Kyllian, Kynan, Leary, Leelyn, Lennin, Lenon, Lorcan, Lydon, Macaulay, Macauley, Maclan, Maguire, Maveryk, Mckoy, Neill, Niam, Nijel, Obrien, Oniel, Osten, Owynn, Paddy, Prescott, Quentyn, Quillan, Quinlin, Quintan, Raeden, Rafferty, Raliegh, Ramsay, Rhyland, Riordan, Roarke, Rourke, Seanpatrick, Shey, Solan, Tagen, Tauren, Tighe, Toryn, Traxton, Vallen, Whalen, Wylan, Alistar, Aydn, Barett, Breken, Caulin, Deaken, Desman, Donevan, Grantley, Kaulder, Locklan, Tameron, Aadan, Adryen, Aidian, Alann, Aldyn, Andric, Aran, Axeton, Ayren, Bannon, Barkon, Bohannon, Bonham, Bowan, Brannen, Breckan, Brextyn, Brodric, Broghan, Bryne, Cadan, Calahan, Calden, Calihan, Callin, Camdan, Candon, Cathan, Cavion, Caylum, Chamberlain, Chivas, Coady, Collan, Colm, Coner, Conn, Cono, Conroy, Corgan, Cormick, Corran, Corrigan, Cowan, Coyle, Cullan, Daelen, Dailan, Daxter, Delance, Desmund, Deylan, Donavyn, Doniven, Donovyn, Dorin, Dorrance, Doryan, Dowell, Draycen, Eann, Edrik, Ernan, Finbar, Finneus, Gaelen, Graesyn, Graisyn, Greydon, Huckson, Huxon, Jaxn, Kadden, Kaelem, Kaenan, Kallahan, Kalven, Karas, Kashdyn, Kashtin, Keanen, Keanon, Keevan, Kelen, Kelian, Kelten, Kermitt, Khilyn, Kiegan, Kielan, Kilan, Kincade, Kingsly, Kiven, Koleman, Konan, Kyian, Lanson, Lason, Lenoxx, Liahm, Lochlin, Lyncoln, Maccoy, Mackinnon, Macklan, Maddock, Maddoxx, Manus, Mccabe, Mccauley, Mclaren, Myrick, Naven, Neilan, Nial, Nohlan, Nolon, Nyal, Ossian, Quinnlan, Ramzey, Ranen, Reylan, Rowin, Rydan, Ryelan, Senan, Taggert, Tallan, Tarl, Toben, Tobyn, Toran, Tristain, Truen, Truxton, Trystian, Vanden, Waelyn

Names like Declan

Names whose popularity has moved with Declan's over the last 50 years.

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

D is for Declan, our favorite little boy.

D is for Declan…”

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

Make Declan's book

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

Questions parents ask

What does the name Declan mean?
Declan is an Irish name, likely meaning 'man of prayer' or 'full of goodness', though the exact etymology is debated. It is derived from the old Irish name Deaglán.
Is Declan currently a popular name?
Declan ranked 139th in popularity for boys in the United States in 2025, with about 1 in every 665 boys given the name. Its popularity peaked in 2019.
Is Declan a boy's name or a girl's name?
Declan is traditionally a masculine name, used almost exclusively for boys.