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

Name City Country Focus Members Contact Name
The SF JavaScript Meetup San FranciscoUSJS Hackers 13078Dave Nugent
Women Who Code NYC New YorkUSBadass Female Coders 11691Women Who Code
London JavaScript Community LondonGBJSLovers 7537luca mezzalira
ExpertTalks Pune PuneINTech Enthusiasts 6673Ashish
Toronto JavaScript TorontoCAMembers 6563Paul Dowman
ReactJS San Francisco Bay Area meetup San FranciscoUSDevelopers 6514devon lindsey
Founders & Coders LondonGBcollaborators 6466Dan Sofer
Pune Developer's Community PuneINPDC 6463Suyog
Uber Engineering Events - San Francisco San FranciscoUSEngineering Enthusiasts 6377Uber Engineering
JavaScript Israel Tel Aviv-YafoILJavaScripters 6183Shai Reznik
NY JavaScript New YorkUSJavaScripters 6060Jovena Whatmoor
Hack Reactor: Learn to Code San FranciscoUSEngineers 5930Tyler Lambe
NYC Nodejs New YorkUSNodesters 5865Peter Bell
Ironhack Madrid MadridESIronhackers 5535Charlotte Bottemanne
Build with Code - New York City New YorkUSEngineers 5378Jenny Mith
Women Who Code Silicon Valley SunnyvaleUSCoders 5093Women Who Code
Node.js Paris ParisFRNodeurs 4737Etienne Folio
Paris.js ParisFRJavaScripteurs 4736Pierrick Paul
JavaScript Meetup BangaloreINJS Hackers 4630Ganesh Samarthyam
SingaporeJS SingaporeSGdevelopers 4407Tim Oxley
San Diego JavaScript Community San DiegoUSJavaScripters 4256Todd Bashor
Node.js Club SF San FranciscoUSMembers 4079Matt Pardee
JavaScript São Paulo São PauloBRJavascript developers 4004Erick Wendel
Devhub Toronto TorontoCADevelopers 3958Emma Cuddy
MedellínJS MedellínCOJavaScripters 3925Julián Duque
WarsawJS WarsawPLMembers 3874Piotr Zientara
Real World React San FranciscoUSDevelopers 3811Benjamin Dunphy
Coderplex Community HyderabadINCoders 3794Kapil Dutta
js-montreal - montreal's javascript user group MontréalCAJavascripters 3756Bruno Carriere
Node Sydney SydneyAUnoders 3671Romain
Eventloop México CityMXDesarrolladores 3652Jeduan Cornejo
SFNode San FranciscoUSNode Users 3645Dan Shaw
Angular Paris ParisFRAngularians 3607Patrick Aljord
Modern Web Mountain ViewUSMembers 3595Tracy
sthlm.js StockholmSEJavaScripters 3572Jonny Strömberg
Node.js Madrid MadridESasíncronos 3487Alex Fernández
Code Oregon PortlandUSStudents 3434Jenny W
Javascript Hyderabad HyderabadINjS'ers 3378Harish
JavaScript MN MinneapolisUSJavaScripters 3333Randall Meeker
Women Who Code Berlin BerlinDEMembers 3329Women Who Code
Chicago Node.js ChicagoUSMembers 3189Mike Hostetler
AngularSP São PauloBRsuperheroes 3175William Grasel
The Los Angeles Javascript meetup - js.la Santa MonicaUSJavaScriptianados 3171David Guttman
Seattle Node.js SeattleUSNode-jsers 3130Ryan Roemer
East Bay JavaScript Meetup Group OaklandUSJS Hackers 3082Dan McAulay
AngularMadrid MadridESAngulares 3062Juanfran
Meetup.js Buenos AiresARJavascripters 3033Juan Pablo Saraceno
Node.js Dilli DelhiINHackers 3007Anup Bishnoi
UtahJS Salt Lake CityUSJavaScriptafarians 2995Kip Lawrence
JSLovers DelhiINJSLovers 2988Neha Sharma
BarcelonaJS BarcelonaESJavaScripters 2972Giorgio Polvara
React Chicago ChicagoUSMembers 2944Bill Gloff
NodeBR - São Paulo São PauloBRnoders 2919Erick Wendel
Seattle React.js SeattleUSMembers 2914Justin Soliz
Jakarta Learns Programming JakartaIDLearners 2911Sigit Prayoga
KrakowJS KrakówPLJS pros 2906Krzysztof Kula
Node.js Denver/Boulder/Ft. Collins DenverUSMembers 2900Brooks Patton
Jakarta Javascript User Group JakartaIDJavaScript Ninja 2877Hengki Sihombing
Women Who Code Portland PortlandUSCoders 2829Women Who Code
Manila JavaScript ManilaPHJS Developers 2822Thomas Laughlin
AngularBeers BarcelonaESMembers 2818David Pich
JSLovers-Bengaluru BangaloreINJSLovers 2810Vineet Ahuja
node.dc WashingtonUSNode programmers 2809Andrew Dunkman
JavaScriptLA Meetup Los AngelesUSJavaScript Ninjas 2799VJ
React.js en Buenos Aires Buenos AiresARreactors 2779sebasjm
SoCal Node.js Los AngelesUSNoders 2770David Aktary
HTML5 + JS Ciudad de México México CityMXMXL5 2763Alejandro
Node.js Meetup Berlin BerlinDEJavaScripters 2758Andreas Lubbe
DhakaJS DhakaBDMembers 2735Md. Azharul Islam
The Digital Pond LondonGBDigital Ponderers 2683Siji Onabanjo
Hack Reactor NYC New YorkUSFuture coders 2675Tyler Lambe
Geek97 DelhiINGeeks 2671Dhananjay Kumar
Web Developers Community Ra'ananaILMembers 2635Ori Calvo
JavaScript KC Kansas CityUSDevelopers 2610Josh Durham
AngularTO TorontoCAMembers 2605Nick Van Weerdenburg
FranceJS ParisFRjavascripters 2562Julien Bouquillon [revolunet]
AmsterdamJS AmsterdamNLJavaScripters 2548Robert Haritonov
Frontend Developer Meetup Amsterdam AmsterdamNLFrontend Developers 2546Frontend Developer Meetups
Triangle JavaScript DurhamUSMembers 2535Kyle Buchanan
Atlanta Nodejs Developers AtlantaUSNode.lers 2503Ryan Connelly
ng-sydney | Angular & Full Stack Web Development SydneyAUAngular Developers 2479Meligy
Serverless San FranciscoUSMembers 2475Serverless User Group
Portland ReactJS PortlandUSreactivists 2472ben
NodersJS SantiagoCLJavascript@s 2470Felipe Torres
GDG Lagos LagosNGMembers 2456Femi TAIWO
London Node.js User Group LondonGBMembers 2449Adam Davis
Boston Node BostonUSMembers 2447Brian Sodano
Phoenix JavaScript PhoenixUSJavaScript Enthusiasts 2447Sal Aiello
vienna.js Vienna JavaScript User Group ViennaATJavaScripters 2447Roland Schütz
Austin Node.js AustinUSnoders 2435Mike McNeil
NashJS NashvilleUSmembers 2429Will
Node.js Israel HerzeliyyaILNoders 2409Lior Kesos
Client Side Technologies BangaloreINTechies 2381Gautham Pai
Jstanbul: Istanbul JavaScript User Group IstanbulTRNinjas 2378Fatih Kadir Akın
South Bay JavaScript Meetup Mountain ViewUSjavascraps 2334Jackie Ho
BayNode - The Bay Area Node.js Meetup Mountain ViewUSCallbacks 2324Maureen
Javascript Ankara AnkaraTRJavaScript Tutkunları 2323Ustun Ozgur
Modern Web UI Palo AltoUSMembers 2286Tracy
Node Melbourne MelbourneAUNodes 2266Andrey Sidorov
Decentralized Blockchain Focus Group LondonGBMembers 2264Kayo
Polyglot Languages & Runtimes (Java, JVM, nodejs, Swift...) BangaloreINMembers 2231Rajeev Palanki
Skyway Software Symposium MinneapolisUStech folk 2229Kevin Behrens
Free Code Camp Portland PortlandUSCampers 2220Nathan Rodman
life michael tel aviv Tel Aviv-YafoILMembers 2208Haim Michael
Hyderabad Javascript Group HyderabadIN_javascripters 2206Ran.ga.na.than
Ottawa JavaScript OttawaCAMembers 2196Owain
Women Who Code Dallas/Ft. Worth DallasUSCoders 2195Women Who Code
DigitalCrafts | Learn to Code in Atlanta AtlantaUSBuilders 2182Max M.
London Javascript LondonGBDevs 2181christoffer noring
IT Development Café AmsterdamNLDevelopment Heroes 2179Luca Prak
LyonJS LyonFRJS lovers 2150Paul Mougel
Lima NodeJS Meetup LimaPENodistas 2146Rein Petersen
Coders in Rio Rio de JaneiroBRCoders 2144Rafael Cruz
Uncoded | Long Beach Tech Meetups & Events Long BeachUSMembers 2141Mike Stewart
T.O.J. - Tales Of JavaScript San FranciscoUSMembers 2085Ann Burkett
Learn to Code New York New YorkUSCoders 2080Galvanize
DenverScript DenverUSScriptonites 2079Matt Webb
freeCodeCamp - Houston HoustonUSCampers 2079Jason Ephraim
GreeceJS AthensGRJavaScripters 2062Elias Niaos
Mentorship Saturdays PortlandUSMembers 2060Brad
The JavaScript Austin Meetup Group AustinUSJavaScripters 2052Johnathan Hebert
SeattleJS Hackers SeattleUSHackers 2050Sam Eubank
Front End Orlando CodePen OrlandoUSFront End Orlando CodePenners 2024David K
PDXnode PortlandUSNodesters 2006Ben Michel
Cambridge Developer Entrepreneur Networking Full Stack CambridgeUSMembers 1991Aaron K
Node.JS Boston BostonUSMembers 1990Freedom Dumlao
Guadalajara JS GuadalajaraMXJavascripters 1987Orlando Del Aguila Febres
MakerSpace Charlotte CharlotteUSMakers 1981Benjamin Gatti
Dublin Node.js Meetup DublinIENoders 1970Sean Walsh
Serverless London LondonGBMembers 1968Serverless User Group
BudapestJS BudapestHUJavaScript Ninjas 1946Gergely Németh
Learn To Code Phoenix PhoenixUSMembers 1937Galvanize
Modern Web (Triangle) RaleighUSMembers 1930Tracy
Full Stack Web Development (Javascript, Angular, React) New YorkUS{{developers}} 1921Alexander David
JavaScript Lab Paris ParisFRJS Hackers 1909Community Hackages
Dublin - Coder Forge DublinIECoders 1904Enda
Ironhack Paris ParisFRIronhackers 1894Charlotte Bottemanne
React Amsterdam AmsterdamNLMembers 1870Robert Haritonov
Colombo JS Meetup ColomboLKdevelopers 1869Pasindu De Silva
The JS Roundabout LondonGBJS Enthusiasts 1869Phill Bateman
ReactJS Vancouver Meetup VancouverCAMembers 1864Eric Kim
Portland JavaScript Admirers PortlandUSAdmirers 1846Jim Kogler
Vuejs Paris ParisFRVuers 1840Eduardo
DC Hack and Tell WashingtonUSHackers 1821Travis Hoppe
Azure Dublin Meetup DublinIEAzurees 1819Bryan Conneely
JS Belgrade Meetup BelgradeRSMembers 1807Slobodan Stojanovic
London HalfStack LondonGBSoftware Engineers 1800Dylan Schiemann
All Things Web Tech ChicagoUSTech Leaders 1784brian rodriguez
Austin Coders & Hackers by The Tech^map AustinUSCoders & Hackers 1765Johan Borge
Women Who Code Bangalore BangaloreINCoders 1761Women Who Code
opensanca São CarlosBRMembros 1759Lucas Marques
CopenhagenJS CopenhagenDKJavascripters 1756Kevin Simper
Ahmedabad AngularJS AhmedabadINMembers 1752Dipesh Patel
Node.js and IBM Cloud Meetup BangaloreINMembers 1751Param Rao
Boulder JS BoulderUSMembers 1741Estella Gonzalez Madison
Philadelphia JavaScript Developers PhiladelphiaUSJS Developers 1739Alex Clark
Beer.js Buenos Aires Buenos AiresARJavaScripters 1735Nicolás Gabriel Bevacqua
New York JavaScript Study Group New YorkUSJavascript Users 1732Leif Droms
EgyptJS CairoEGMembers 1725Mohamed Shaban
MilwaukeeJS MilwaukeeUSJavaScripters 1723Tony Gemoll
Azure Israel Tel Aviv-YafoILMembers 1720Israeli Azure
Angular Nigeria (ng)² LagosNGMembers 1720Christian Nwamba
HH.js HamburgDEJavaScripters 1718Martin Kleppe
BA Node.js Meetup Buenos AiresARNoders 1718Node Buenos Aires
I Teach You Programming, So You Teach Me English! TokyoJPMembers 1717Hiroaki Yasutomo
Codeworks - Barcelona BarcelonaESCoders 1701Alessandro Zanardi
Node.js Jakarta JakartaIDnodejs farmers 1695Lukluk Luhuring Santoso
NodeUA KyivUAsoftware engineers 1687Timur Shemsedinov
Node.js Philly PhiladelphiaUSNodes 1673Alex Urevick-Ackelsberg
Bristol JS BristolGBMembers 1669Andrew McGregor
BucharestJS BucharestROJS Hackers 1669Ciprian Borodescu
Angular X Paris ParisFRnew generation Angularians 1652Bertrand Piselli
Hong Kong JavaScript and Node.js Hong KongHKDevelopers 1650Kevin Bluer
MunichJS – JavaScript User Group MünchenDEMembers 1639Béla Varga
FullStack Cluj Cluj-NapocaROMembers 1635Paul Chirila
London Digital Design and Technology User Group LondonGBD&D's 1628Mark Young
Angular Belgium BrusselsBEAngularian 1623Yassine Gayl
Freelance Talks : Les Apéros Freelances & Tips ParisFRFreelances 1616FreelanceRepublik
Code's Cool Dallas AddisonUScodescoolers 1611Steven Gangstead
OpenHack Austin AustinUSOpenHackers 1587Joshua Johnson
Utah Node.js - Salt Lake City Salt Lake CityUSNode Ninjas 1573Aaron Seth Madsen
SF Front-End Developers: Experience Engineering San FranciscoUSExperience Engineers 1568Ahmad Ansari
charmCityJs BaltimoreUSJavaScripters 1550Karl Groves
DC Web Design, Development, Tech, and Media Authority WashingtonUSWeb Heads 1528Startup Central
Nodeschool Istanbul IstanbulTRNodes 1521Arif Çakıroğlu
Meteor Egypt CairoEGMeteorites 1518Meteor Community Meetups
Uszanowanko Programowanko GliwicePLDoges 1515Marcin Mazurek
DFW Front end development DallasUSFEDs 1513Unni
Go Language NYC New YorkUSGophers 1511Gray Herter
Tech nights in Medellín MedellínCOMembers 1495Sebastian Miranda
Testable LA Los AngelesUSassertist 1491Rit Li
Milano Frontend MilanoITFrontenders 1486Alessandro Muraro
NYC Golang New YorkUSGophers 1484Greg Lopez
Meet.js Warsaw WarsawPLJavaScript lovers 1479meet.js Warsaw
IBM Code London LondonGBCoders 1479Mo Haghighi
Toronto Node.js TorontoCAMembers 1476Neal Pollock
require('lx') - The JavaScript meetup in Lisbon LisbonPTJavaScripter 1476João Pinto Jerónimo
Js-Star .Paris ParisFRJSaddict 1468Sébastien Berten
MEAN (MongoDB, Express, AngularJS, Node.js) Stack NYC New YorkUSMEANies 1465Jamal
Bay Area JavaScript Interview Prep Meetup SunnyvaleUSProblem Solver 1461Jack Wong