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

Name City Country Focus Members Contact Name
Hackers and Founders Mountain ViewUSHackers/Founders 15358Jonathan Nelson
Designers + Geeks San FranciscoUSDesigners + Geeks 14812Joe Robinson
SF Data Science San FranciscoUSData Scientists 14247Galvanize
Google Developer Group Silicon Valley Mountain ViewUSGoogle Developers 13193Peter Mooshammer
The New York Python Meetup Group New YorkUSPython Programmers and Users 12701James Powell
Women Who Code SF San FranciscoUSCoders 11806Women Who Code
Women Who Code NYC New YorkUSBadass Female Coders 11691Women Who Code
Code Crew - Learn to Code! New YorkUSSwabbies 11592Jamal
San Francisco Python Meetup Group San FranciscoUSPython Programmers 11080Grace Law
Designers + Geeks New York New YorkUSDesigners + Geeks 10435Joe Robinson
Silicon Valley Machine Learning Mountain ViewUSData Coders 10144Bill Kish
Toronto - Cognitive, AI & Data Science Meetup TorontoCAMembers 10102Polong Lin
PyDelhi - Python Delhi User Group DelhiINPython lovers 8812Raman
Open Source Bangalore BangaloreINhackers 8643Jeeva
106 Miles Palo AltoUS106ers 8586Adam
Women Who Code DC WashingtonUSCoders 8499Women Who Code
The Boston Python User Group CambridgeUSPythonistas 8163Ned Batchelder
PyData London Meetup LondonGBmembers 7853PyData/NumFOCUS
Bay Area Software Engineers (BASE) San FranciscoUSSoftware Engineers 7670Michael Latulippe
Machine Learning, Big Data e Engenharia São PauloBRMachine Learners 7591Silbermann Thierry
Hyderabad Python Meetup Group HyderabadINHyPy 7507Bhargava Subhash Kalluri
BangPypers - Bangalore Python Users Group BangaloreINPythonistas 7404Python Software Society of India
she codes(tlv); Tel Aviv-YafoILCoders 7384Ruth Polachek
Zalando Tech Events Berlin BerlinDEZalandos 7256Zalando Tech Events
Big Data, Paris ParisFRData Lovers, Paris 7251Dan Gray
Data Science Festival - London LondonGBData Scientists 7230David Loughlan
VanDev: Vancouver's Software Developers Network VancouverCASoftware Industry Professionals 6808Cliff Hammerschmidt
PythonPune PuneINPythonsitas 6656Python Software Society of India
Boston Machine Learning CambridgeUSDevelopers 6654Gideon Wulfsohn
SF Bay Cloud Native Open Infra Palo AltoUSStackers & Hackers 6546Lisa-Marie Namphy
NYC Open Data New YorkUSData Scientists and Open Data-er 6510Shangxuan Vivian Zhang
New York MongoDB User Group New YorkUSMembers 6440MongoDB
Puget Sound Programming Python (PuPPy) SeattleUSPythonistas 6371Don Sheu
Istanbul Coders IstanbulTRCoder 6246Selim Öber
Hacker Hours New YorkUSHaxors 6173Aidan Feldman
Grupy-SP São PauloBRPythonistas 6126Eric Hideki
Taipei.py - Taipei Python User Group TaipeiTWPythonistas 6085timyellow
Learn Python NYC New YorkUSPython Enthusiasts and Learners 5876Paul Logston
Tech Talks @ AppNexus NYC New YorkUSMembers 5863AppNexus Tech Community
Statistical Programming DC WashingtonUSdc-hackeRs 5764Data Community DC
Python + Data Science New YorkUSMembers 5610sean reed
The Austin Python Meetup AustinUSPython Programmers 5375Peter Wang
Women Who Code London LondonGBCoders 5316Women Who Code
Python Istanbul IstanbulTRPythonistas 5305Oğuz Albayrak
Silicon Valley Python Meetup Mountain ViewUSPythonistas 5132Glen Jarvis
Byte Academy: Python, FinTech, Blockchain,DataSci, Quant New YorkUSMembers 5130Emily H
Women Who Code Silicon Valley SunnyvaleUSCoders 5093Women Who Code
PyAtl: Atlanta Python Programmers AtlantaUSPython Programmers 4967Cameron Lane
Bay Area Hackathons San FranciscoUSHackers 4957Raj
London Python LondonGBPythonistas 4917Patrick Morris
Seattle Data Science SeattleUSData Scientists 4889Galvanize
PyLadies of San Francisco San FranciscoUSPythonistas 4863Michelle Glauser
Bay Area Machine Learning Santa ClaraUSMembers 4811John Park
StarsConf meetup SantiagoCLSlackers 4807Jorge Alberto Rodríguez Suárez
Python Madrid MadridESPythonistas 4797Paradigma
Code for Boston CambridgeUSCivic Innovators 4775Code for America Brigade
New York Data Science Study Group New YorkUSData Science Padawans 4729Eric Xu
Python Ireland DublinIEPythonista 4714Diarmuid Bourke
Deep Learning Paris Meetup ParisFRdeeplearners 4677Tony Pinville
RIoT RaleighUSRIoTers 4455Tom Snyder
PyData Delhi DelhiINPyDataers 4381Manoj Pandey
PyData Singapore SingaporeSGData Pythonistas 4380Adam Drake
Python Users Berlin (PUB) BerlinDEPythonistas 4325Veit Schiele
PyData Tel Aviv Tel Aviv-YafoILMembers 4325Iddo Berger
Aegis-IBM Data Science, Big Data, Analytics, AI, ML, DL MumbaiINBIG DATA Lovers 4216Aegis School of Data Science
Sthlm Spotify Tech Group StockholmSEMusic Hackers 4201Lars-Erik Stenholm
Sydney Python (SyPy) SydneyAUPythonistas 4152Xuanyi Chew
Arte e Programação São PauloBRPessoas 4130Alexandre Villares
Learn to Code Seattle SeattleUSAspiring Coders 4110Galvanize
Singapore Python User Group SingaporeSGPythonistas 4033vanzaj
Practical Data Science BangaloreINData Scientists 3993Amit Kapoor
Hack && Tell New YorkUSHackers 3937Danielle Sucher
Machine Learning and Blockchain HyderabadINFuturists 3910rahul jain
Istanbul Spark Meetup IstanbulTRSpark Learner 3825Şafak Serdar Kapçı
Pittsburgh Code & Supply PittsburghUSMembers 3824Code & Supply
Madrid DevOps MadridESdevops 3817txetxu Velayos
PyData Berlin BerlinDEmembers 3813PyData/NumFOCUS
Melbourne Web Developers MelbourneAUDevs 3793Emma
Data Scientists Ireland DublinIEMembers 3785Data Scientists Ireland
ChiPy: Chicago's Official Python User Group ChicagoUSchipmunks 3784Adam Bain
PyData NYC New YorkUSmembers 3770PyData/NumFOCUS
Toronto Hack and Tell TorontoCAHackers 3761Alex E
Data Science for Sustainability San FranciscoUSMembers 3722Mimi Zhang
Data Science Philadelphia (DataPhilly) PhiladelphiaUSDataists 3694Michael Becker
Data Wranglers DC WashingtonUSData Wranglers 3689Data Community DC
Machine Learning Spain MadridESMachine Learners 3668Fernando Calle
Women Who Code Boston BostonUSCoders 3656Women Who Code
CodeUp Manchester ManchesterGBCoders 3650Claire Wicher
Montréal-Python MontréalCAPythonistas 3638Mathieu Leduc-Hamel
Boston Software Engineers BostonUSSoftware Engineers 3568Michael Latulippe
NYC Women in Machine Learning & Data Science New YorkUSMembers 3555Sinziana E.
Boston Predictive Analytics CambridgeUSMembers 3470John Verostek
Austin Data Science AustinUSData Scientists 3459Galvanize
London Data Science Workshop LondonGBData hackers 3446Alex Glaser
LA Web/Mobile Software Entrepreneurs Santa MonicaUSFuture Billionaires 3436Robert K.
Code Oregon PortlandUSStudents 3434Jenny W
Houston Data Science HoustonUSLearners 3372Ted Petrou
Full-Stack Engineering New YorkUSFull-stack Engineers 3370Michael Boufford
Dev Japan TokyoJPmembers 3361Caven Cade Mitchell
GDG Tel Aviv Tel Aviv-YafoILGDGers 3358James Lebowitz
Women Who Code Berlin BerlinDEMembers 3329Women Who Code
Learn to Code | Thinkful Atlanta AtlantaUSMembers 3325Ivy Rueb
Bay Area Full Stack Mountain ViewUSnvirters 3319Vikram Dham
Delhi MongoDB User Group DelhiINMembers 3315MongoDB
BAyPIGgies Mountain ViewUSPythonistas 3315Jeff Fischer
San Francisco MongoDB User Group San FranciscoUSMongoDB Fans 3192MongoDB
Austin Data AustinUSDatanauts 3184Peter Wang
London Data Science #ODSC LondonGBData Scientists 3178Mammad Mahmoodi
NYC PyLadies New YorkUSPythonistas 3146NYC PyLadies
Stacja IT Warszawa WarsawPLMembers 3142Maria Świdniak
NYC Data Wranglers New YorkUSData Scientists 3073Alexander Leeds
Community Hack Night Los AngelesUSMembers 3056Dubie
Django-NYC New YorkUSDjangonauts 3039Geoffrey Sechter
Portland Data Science Group PortlandUSData Hackers 3026Kinga
San Diego Python Users Group San DiegoUSPython Developers 3014Carol Naslund Willing
Code Self Study BerkeleyUSProgrammers 3005Josh
PyData Chicago ChicagoUSPyDataneers 2968PyData/NumFOCUS
Melbourne Python Charmers Meetup Group MelbourneAUPythoneers 2938Ed Schofield
The San Francisco Django Meetup Group San FranciscoUSDjangonauts 2910Rudy Mutter
NOVA-Python RestonUSPythonistas 2896Ryan Day
Memphis Technology User Groups MemphisUSTechies 2869Bryan Robinson
Portland Python User Group PortlandUSPython Programmers 2857Jay McGrath
Women Who Code Portland PortlandUSCoders 2829Women Who Code
Tech Talk DC ArlingtonUSPolyglots 2829Doguhan Uluca
New York Artificial Intelligence In Healthcare New YorkUSMembers 2818Anthony Albertorio
DataStax Cassandra South Bay Users CupertinoUSCassandra Rebels 2813DataStax
SoCal Python Los AngelesUSPythonista 2805Michael R
PyData Warsaw WarsawPLMachine Learners 2801PyData/NumFOCUS
Citizen Data Scientists - Melbourne MelbourneAUData Scientists 2796Sudarshan Roy
Python Medellín MedellínCOPythoneers 2786John Roa
PyData São Paulo São PauloBRMembers 2773Adriano Almeida
Barcelona Python Meetup BarcelonaESPythonistas 2771David Arcos
FrenchData ParisFRData Frenchies 2771Christophe Bourguignat
DFW Pythoneers RichardsonUSPythoneers 2768Jeff Rush
The Philadelphia Python Users Group (PhillyPUG) PhiladelphiaUSPythonistas 2767Maneesha Sane
Amsterdam Python Meetup Group AmsterdamNLPythonistas 2751Byte
Python Toronto TorontoCAPython Developers 2692Ash Christopher
Boston Apache Spark User Group CambridgeUSSpahk Enthusiasts 2637Joseph Kambourakis
Hyderabad Python and Django Meetup Group HyderabadINMembers 2627Ashwin Kumar
Python for Quant Finance LondonGBPython Quants 2619Yves Hilpisch
New York City PostgreSQL User Group New YorkUSDatabase Users 2608Mason Sharp
Django Boston Meetup Group CambridgeUSDjangonauts 2605Nate Aune
MATH View Algorithm Design (MATHVAD) Palo AltoUSAlglorist Coders 2546Suresh B Velagapudi
Paris.py (Python, Django & friends) ParisFRPythonistas 2529Sylvain Zimmer
PyHou - Houston Python Enthusiasts! HoustonUSPythoneers 2523Karl Ulbrich
PyData Amsterdam AmsterdamNLMembers 2516PyData/NumFOCUS
Serverless San FranciscoUSMembers 2475Serverless User Group
Data Science Lab LondonGBData Ninjas 2474Angelina
Algorithmic Art LondonGBAlgorithmic Artists 2460Tariq Rashid
PyData Atlanta AtlantaUSMembers 2445Jeremy Jacobson
PyMNtos - Twin Cities Python User Group MinneapolisUSPythonistas 2443Python Minnesota
San Francisco Data Science #ODSC San FranciscoUSData Scientists 2438Mammad Mahmoodi
London Data Science Journal Club LondonGBMembers 2428Lev Konstantinovskiy
Metis: Seattle Data Science SeattleUSAspiring Data Scientists 2420Metis
IoT, Electronics, Data Science & Cybersecurity - CHENNAI ChennaiINMembers 2412Suniel Kumar
Developing with Data in San Francisco San FranciscoUSDevelopers 2398Scott Mitchell
Women Who Code Singapore SingaporeSGMembers 2396Women Who Code
Mehrdad Pazooki TorontoCASpark Enthusiasts 2384Chris Fregly
Python ID JakartaIDPython-ers 2379Edwin Lunando
ThaiPy - Bangkok Python Meetup BangkokTHLovers of code 2335Dylan Jay
Chennaipy ChennaiINPythonistas 2323Vijay Kumar
New York Data Science #ODSC New YorkUSData Scientists 2310Mammad Mahmoodi
Düsseldorf Data Science Meetup DüsseldorfDEData Hackers 2300Thomas Wiecki
Barcelona Spark Meetup BarcelonaESMembers 2295Ferran Galí i Reniu
Silicon Valley Data Science Practitioners San FranciscoUSPractitioners 2285Devon Sun
Black Software Engineers of NYC BrooklynUSMembers 2283Devin Jackson
Robot Developers Group - Bay Area San FranciscoUSMembers 2282Andra
Python Data Science LA Santa MonicaUSMembers 2267Susana Min
Technology Job Seekers Greater Boston BostonUSProfessionals 2239Maureen
Learn to Code at the Denver Library DenverUSMembers 2232Alex Baker
Skyway Software Symposium MinneapolisUStech folk 2229Kevin Behrens
Central London Data Science Project Nights LondonGBMembers 2211Zack Akil
life michael tel aviv Tel Aviv-YafoILMembers 2208Haim Michael
Dubai DevNights DubaiAEMembers 2199Seb Dietzel
Women Who Code Sydney SydneyAUCoders 2197Women Who Code
Madrid MongoDB User Group MadridESMembers 2193MongoDB
Beijing Python BeijingCNPeking Pythonistas 2190Mike N
DigitalCrafts | Learn to Code in Atlanta AtlantaUSBuilders 2182Max M.
IT Development Café AmsterdamNLDevelopment Heroes 2179Luca Prak
Mumbai Big Data Analytics Meetup MumbaiINMembers 2138Defour Analytics
OCPython: US.CA.Orange County's Python Community Group IrvineUSMembers 2137Dan Stromberg
Women Who Code East Bay OaklandUSCoders 2130Women Who Code
Designers + Geeks Boston CambridgeUSDesigners + Geeks 2120Joe
Learning Data Science San FranciscoUSData Scientists 2119Galvanize
Stockholm Google Developer Group StockholmSEGDGers 2118Sevil Güler
Salt Lake City Python Salt Lake CityUSPythonistas 2098Faris
Python Bogotá BogotáCOPythonistas 2097Camilo Nova
Paris Big Data Classes ParisFRData-Learners 2088romain jouin
Chicago ML ChicagoUSMachine Learners 2087Garrett Smith
Women Who Code Delhi DelhiINWomen Who Code-rs 2075Women Who Code
Women Who Code LA Culver CityUSCoders 2067Women Who Code
Ottawa Python Authors Group OttawaCAPythonistas 2062Ian Ward
All Things Python SunnyvaleUSPythonistas 2049Ravi
Bangalore Django User Group BangaloreINdjangonauts 2045Jagadesh Babu T
Belo Horizonte Python User Group Belo HorizonteBRPythonistas 2021Ervilis de Souza
Artificial Intelligence ZA JohannesburgZAMembers 1984Rishal Hurbans
Ukrainian Python User Group KyivUAPythonistas 1975Volodymyr Hotsyk
Serverless London LondonGBMembers 1968Serverless User Group
Poland CodiLime Tech Talk WarsawPLLimes 1957HR
PyData Paris ParisFRMembers 1949Sylvain Corlay