Here are the top 200 Meetup Groups according to Meetup.com

Name City Country Focus Members Contact Name
Women Who Code NYC New YorkUSBadass Coders 14175Women Who Code
The SF JavaScript Meetup San FranciscoUSJS Hackers 13522Dave Nugent
Pune Developer's Community PuneINPDC 10058Suyog
Build with Code - New York City New YorkUSEngineers 9643Jenny M.
Uber Engineering Events - San Francisco San FranciscoUSEngineering Enthusiasts 9450Uber Engineering
London JavaScript Community LondonGBJSLovers 8691luca mezzalira
Expert Talks Pune PuneINTech Enthusiasts 8312Ashish
Toronto JavaScript TorontoCAMembers 7998Paul Dowman
ReactJS San Francisco Bay Area meetup San FranciscoUSDevelopers 7491devon lindsey
JavaScript Israel Tel Aviv-YafoILJavaScripters 7389Shai Reznik
Founders and Coders LondonGBcollaborators 6875Dan Sofer
Ironhack Madrid MadridESIronhackers 6787Ignacio Sanchez Jurado (Nacho)
NY JavaScript New YorkUSJavaScripters 6670Jovena Whatmoor
Women Who Code Silicon Valley SunnyvaleUSCoders 6322Women Who Code
NYC Nodejs New YorkUSNodesters 6308Peter Bell
JavaScript Meetup BangaloreINJS Hackers 5903Ganesh Samarthyam
Hack Reactor: Learn to Code San FranciscoUSEngineers 5865Tyler Lambe
GDG Lagos LagosNGMembers 5760Femi TAIWO
Paris.js ParisFRJavaScripteurs 5489Pierrick Paul
Node.js Paris ParisFRNodeurs 5367Etienne Folio
San Diego JavaScript Community San DiegoUSJavaScripters 5321Todd Bashor
Devhub Toronto TorontoCADevelopers 5301Emma Cuddy
Coderplex Community HyderabadINCoders 5135Kapil Dutta
BostonJS BostonUSJavaScripters 5075Lina Lekova
JavaScript São Paulo São PauloBRJavascript developers 5067Igor Luiz Halfeld
MedellínJS MedellínCOJavaScripters 5026Julián Duque
WarsawJS WarsawPLMembers 4957Piotr Zientara
SingaporeJS SingaporeSGdevelopers 4949Tim Oxley
Real World React San FranciscoUSDevelopers 4602Benjamin Dunphy
Women Who Code Berlin BerlinDEMembers 4586Women Who Code
IBM Code London LondonGBCoders 4568Mo Haghighi
Modern Web Mountain ViewUSMembers 4536Tracy
SFNode San FranciscoUSNode Users 4531Dan Shaw
js-montreal - montreal's javascript user group MontréalCAJavascripters 4509Bruno Carriere
Node Sydney SydneyAUnoders 4504James Richardson
Coders in Rio Rio de JaneiroBRCoders 4464Rafael Cruz
Eventloop México CityMXDesarrolladores 4216Jeduan Cornejo
JSLovers DelhiINJSLovers 4061Neha Sharma
React en Buenos Aires Buenos AiresARreactors 4043sebasjm
Node.js Club SF San FranciscoUSMembers 4027Matt Pardee
NodeBR - São Paulo São PauloBRnoders 4025Erick Wendel
sthlm.js StockholmSEJavaScripters 3981Jonny Strömberg
Meetup.js Buenos AiresARJavascripters 3974Alejandro Oviedo
BarcelonaJS BarcelonaESJavaScripters 3936Tudor
AngularSP São PauloBRsuperheroes 3907William Grasel
JSLovers-Bengaluru BangaloreINJSLovers 3855Neha
React Chicago ChicagoUSMembers 3833Bill Gloff
Jakarta Javascript User Group JakartaIDJavaScript Ninja 3827Hengki Sihombing
Node.js Madrid MadridESasíncronos 3802Manuel Juan Fosela
Node.js Israel Tel Aviv-YafoILNoders 3790Lior Kesos
JavaScript MN MinneapolisUSJavaScripters 3762Randall Meeker
Javascript Hyderabad HyderabadINjS'ers 3718Harish
UtahJS Salt Lake CityUSJavaScriptafarians 3688Ken Snyder
Seattle React.js SeattleUSMembers 3681Justin Soliz
js.la - The Los Angeles JavaScript meetup Santa MonicaUSJavaScriptianados 3637David Guttman
KrakowJS KrakówPLJS pros 3632Krzysztof Kula
Manila JavaScript ManilaPHJS Developers 3578Thomas Laughlin
Angular Paris ParisFRAngularians 3566Patrick Aljord
Women Who Code Portland PortlandUSCoders 3558Women Who Code
Code Oregon PortlandUSStudents 3529Jenny W
Chicago Node.js ChicagoUSMembers 3419Mike Hostetler
Portland ReactJS PortlandUSreactivists 3307Jason Brown
Women Who Code Dallas/Ft. Worth DallasUSCoders 3304Women Who Code
JSTANBUL: İstanbul JS UG (moved to kommunity.com/jstanbul) IstanbulTRNinjas 3275Fatih Kadir Akın
DhakaJS DhakaBDMembers 3266Md. Azharul Islam
NodersJS SantiagoCLJavascript@s 3256Ender Bonnet
East Bay JavaScript Meetup Group OaklandUSJS Hackers 3252Dan McAulay
Node.js Denver/Boulder/Ft. Collins DenverUSMembers 3250Brooks Patton
London Node.js User Group LondonGBMembers 3228Adam Davis
Seattle Node.js SeattleUSNode-jsers 3188Ryan Roemer
Ironhack Paris ParisFRIronhackers 3141Karim Fadlallah
IT Development Café AmsterdamNLDevelopment Heroes 3126Janice Wildenburg
AngularMadrid MadridESAngulares 3107Juanfran
Geek97 DelhiINGeeks 3096Dhananjay Kumar
Polyglot Languages & Runtimes (Java, JVM, nodejs, Swift...) BangaloreINMembers 3094Gireesh Punathil
Node.js Dilli DelhiINHackers 3070Anup Bishnoi
Austin Node.js AustinUSnoders 3030Mike McNeil
hackcolab BarcelonaESMembers 3011David Pich
AmsterdamJS AmsterdamNLJavaScripters 3009Robert Haritonov
HTML5 + JS Ciudad de México México CityMXMXL5 3005Alejandro
JavaScript KC Kansas CityUSDevelopers 3001Josh Durham
Node.js Meetup Berlin BerlinDEJavaScripters 2992Andreas Lubbe
JavaScriptLA Meetup Los AngelesUSJavaScript Ninjas 2989VJ
Frontend Developer Meetup Amsterdam AmsterdamNLFrontend Developers 2979Frontend Love
BrisJS - Brisbane JavaScript BrisbaneAUJavaScript Developers 2971Nigel
Jakarta Learns Programming JakartaIDLearners 2941Sigit Prayoga
Atlanta Nodejs Developers AtlantaUSNode.lers 2932Ryan Connelly
NashJS NashvilleUSmembers 2920Will
Free Code Camp Portland PortlandUSCampers 2871Brigette Eckert
JS Roundabout LondonGBJS Enthusiasts 2862Phill Bateman
vienna.js Vienna JavaScript User Group ViennaATJavaScripters 2852Roland Schütz
SoCal Node.js Los AngelesUSNoders 2851David
FranceJS ParisFRjavascripters 2851Julien Bouquillon [revolunet]
JavaScript Ankara AnkaraTRJavaScript Tutkunları 2848Ustun Ozgur
life michael tel aviv Tel Aviv-YafoILMembers 2846Haim Michael
Phoenix JavaScript PhoenixUSJavaScript Enthusiasts 2841Sal Aiello
EgyptJS CairoEGMembers 2792Mohamed Shaban
React Amsterdam AmsterdamNLMembers 2790Robert Haritonov
Hack Reactor NYC New YorkUSFuture coders 2788Tyler Lambe
freeCodeCamp - Houston HoustonUSCampers 2787Jason Ephraim
node.dc WashingtonUSNode programmers 2770Andrew Dunkman
Serverless San FranciscoUSMembers 2759Serverless User Group
React Delhi NCR DelhiINMembers 2755Anoop Gupta
Web Developers Community Ra'ananaILMembers 2741Ori Calvo
Women Who Code Bangalore BangaloreINCoders 2716Women Who Code
ReactJS and Friends PuneINMembers 2685Vipul A M
Serverless London LondonGBMembers 2679Serverless User Group
Triangle JavaScript DurhamUSMembers 2678Kyle Buchanan
AngularTO TorontoCAMembers 2655Nick Van Weerdenburg
The Digital Pond LondonGBDigital Ponderers 2647Siji Onabanjo
SeattleJS Hackers SeattleUSHackers 2640Sam Eubank
Hyderabad Javascript Group HyderabadIN_javascripters 2637Ran.ga.na.than
GreeceJS AthensGRJavaScript devs 2636Elias Niaos
Guadalajara JS GuadalajaraMXJavascripters 2633Orlando Del Aguila Febres
ng-sydney SydneyAUAngular Developers 2592Meligy
Ottawa JavaScript OttawaCAMembers 2570Owain
BandungJS BandungIDMembers 2551Zufrizal Yordan
Boston Node BostonUSMembers 2534Brian Sodano
DigitalCrafts | Learn to Code in Atlanta AtlantaUSBuilders 2528Max M.
LyonJS LyonFRJS lovers 2489Paul Mougel
CopenhagenJS CopenhagenDKpeople 2485Kevin Simper
React Medellín MedellínCOMiembros 2476Alejandro Nanez
Dev Dialogue New YorkUSDevelopers 2474Matthew Jording
Dublin - Coder Forge DublinIECoders 2463Enda
Modern Web (Triangle) RaleighUSMembers 2450Tracy
MakerSpace Charlotte CharlotteUSMakers 2423Benjamin Gatti
South Bay JavaScript Meetup Mountain ViewUSjavascraps 2420Jackie Ho
React Vancouver Meetup VancouverCAMembers 2418Eric Kim
DenverScript DenverUSScriptonites 2417Matt Webb
Learn To Code Phoenix PhoenixUSMembers 2362Galvanize
Skyway Software Symposium MinneapolisUStech folk 2348Kevin Behrens
Vuejs Paris ParisFRVuers 2342Eduardo
Dublin Node.js Meetup DublinIENoders 2340Sean Walsh
NodeUA KyivUAsoftware engineers 2339Timur Shemsedinov
Client Side Technologies BangaloreINTechies 2329Gautham Pai
Azure Dublin Meetup DublinIEAzurees 2329Bryan Conneely
Node Melbourne MelbourneAUNodes 2324Andrey Sidorov
Learn to Code New York New YorkUSCoders 2322Galvanize
PDXnode PortlandUSNodesters 2316Ben Michel
Angular Nigeria (ng)² LagosNGMembers 2314Kelechi Oti
JavaScript Lab Paris ParisFRJS Hackers 2309Community Hackages
Mentorship Saturdays PortlandUSMembers 2298Bradley Kouchi
BudapestJS BudapestHUJavaScript Ninjas 2295Norbert Sram
Azure Israel Tel Aviv-YafoILMembers 2293Israeli Azure
Front End Orlando CodePen OrlandoUSFront End Orlando CodePenners 2289David K
Codeworks - Barcelona BarcelonaESCoders 2285Eloi Alcaide
Uncoded | Long Beach Tech Meetups & Events Long BeachUSMembers 2279Mike Stewart
Cambridge Developer Entrepreneur Networking Full Stack CambridgeUSMembers 2273Aaron K
London Javascript LondonGBDevs 2273christoffer noring
BayNode - The Bay Area Node.js Meetup Mountain ViewUSCallbacks 2260DMYTRO
Lima NodeJS Meetup LimaPENodistas 2256Rein Petersen
Modern Web UI Palo AltoUSMembers 2219Tracy
Uszanowanko Programowanko GliwicePLDoges 2216Marcin Mazurek
opensanca São CarlosBRMembros 2180Lucas Marques
GolangNYC New YorkUSGophers 2147Gray Herter
Node Boston BostonUSMembers 2138Freedom Dumlao
I Teach You Programming, So You Teach Me English! TokyoJPMembers 2133Hiroaki Yasutomo
Facebook Developers Circle - Indore IndoreINDevelopers 2069Mrinal Jain
Bangkok Javascript BangkokTHHackers 2067Sira Sujjinanont
BucharestJS BucharestROJS Hackers 2058Ciprian Borodescu
BA Node.js Meetup Buenos AiresARNoders 2053Node Buenos Aires
Bay Area JavaScript Interview Prep Meetup SunnyvaleUSProblem Solver 2053Jack Wong
Learn to Code | Thinkful Philadelphia PhiladelphiaUSMembers 2052Ivy Rueb
Downtown ReactJS Meetup AustinUSMembers 2048Roberto
Colombo JS Meetup ColomboLKdevelopers 2047Pasindu De Silva
MilwaukeeJS MilwaukeeUSJavaScripters 2044Roman Reynebeau
Portland JavaScript Admirers PortlandUSAdmirers 2042Benjamin Herson
The JavaScript Austin Meetup Group AustinUSJavaScripters 2039Johnathan Hebert
Fullstack Developers New YorkUS{{developers}} 2039Alexander David
T.O.J. - Tales Of JavaScript San FranciscoUSMembers 2038Ann Burkett
Mumbai JavaScript Meetup MumbaiINJavascriptors 2037Bilal Budhani
JS Belgrade Meetup BelgradeRSMembers 2034Slobodan Stojanovic
Bristol JS BristolGBMembers 2029Adam Butler
Philadelphia JavaScript Developers PhiladelphiaUSJS Developers 2029Beth Dickerson
DC Hack and Tell WashingtonUSHackers 2009Travis Hoppe
React - Rio de Janeiro Rio de JaneiroBRMembros 2002guilherme de azevedo martins
Serverless Turkey IstanbulTRMembers 1996Serverless User Group
require('lx') LisbonPTJavaScripter 1985João Pinto Jerónimo
Code's Cool Dallas AddisonUScodescoolers 1959Steven Gangstead
Angular X Paris ParisFRnew generation Angularians 1959Bertrand Piselli
Ahmedabad AngularJS AhmedabadINMembers 1955Dipesh Patel
Boulder JS BoulderUSMembers 1951Estella Gonzalez Madison
London HalfStack LondonGBSoftware Engineers 1930Dylan Schiemann
Node.js Philly PhiladelphiaUSNodes 1929John Lelii
Milano Frontend MilanoITFrontenders 1918Alessandro Muraro
Utah Node.js - Salt Lake City Salt Lake CityUSNode Ninjas 1901Aaron Seth Madsen
HH.js HamburgDEJavaScripters 1889Daniel Dembach
Meteor Egypt CairoEGMeteorites 1881Meteor Community Meetups
FullStack Cluj Cluj-NapocaROMembers 1880Paul Chirila
Sydney Progressive Web Apps | SydPWA SydneyAUMembers 1847Chris A James
Austin Software Engineers & App Developers AustinUSSoftware Engineers/Developers 1846Chris Requena
Node.js Jakarta JakartaIDnodejs farmers 1834Lukluk Luhuring Santoso
Chennai JavaScript Meetup ChennaiINMembers 1833Abhishek Yadav
NodeCo - NodeJS colombia + nodejs medellin + javascript MedellínCOnodejs lovers 1832camilo montoya
JSHeroes Meetups Cluj-NapocaROheroes 1819Paul BRIE
Austin Coders & Hackers by The Tech^map AustinUSCoders & Hackers 1794Johan Borge
Angular Belgium BrusselsBEAngularian 1782Sam Vloeberghs
Node.js and IBM Cloud Meetup BangaloreINMembers 1779Param Rao
MunichJS – JavaScript User Group MünchenDEMembers 1763Béla Varga
ReactJS Oslo Meetup OsloNOReactors 1755Domenico Solazzo