LAA – Library Association of Australia
LAB – Library Association of Bangladesh
LABORDOC – International Labor Documentation, ILO
LAN – Local Area Network
LAUK – (The) Library Association of the United Kingdom
LC – Library of Congress (USA)
LCC – Library of Congress Classification
LCCN – Library of Congress Control Number
LCRI – Library of Congress Rule Interpretation(s)
LDX – Long Distance Xerox
LEC – London Education Classification (D.J.Foskett)
LFF – Librarians For Fairness
LIBER – League of European Research Libraries
LIBRIS – Library Information System (Stockholm)
LIC – Library and Information Centres
LIONS – Library Information and Online Networks
LIOSA – Library and Information Science Old Students’ Association (Andhra University)
LIS – Library and Information Science
LISA – Library and Information Science Abstracts (Bi-monthly of LA)
LISA – Library and Information Services in Astronomy
LISBd – Librarians and Information Scientists, Bangladesh
LIST – Library and Information Science Today
LITA – Library and Information Technology Association
LIU – Local Information Units
LOCAS – Local Catalogue Service
LOCIS – Library of Congress Information System
LOCKSS – Lots of Copies Keep Stuff Safe
LRC – Learning Resource Centre
LSA – Library Science Abstracts (renamed as LISA)
LTTE – Letter To The Editor
LUCI – Logical Unit based Cyclic Index
LUSLIC – Lucknow Special Libraries Consortium
L-VIS – Laser View-Data Information Service (UK)
MALA – Madras Library Association
MALCAP – Maryland Academic Libraries Automated Processing Centre (University of Maryland)
MALIMET – Master List of Medical Indexing Terms
MALS – Master of Arts, Librarianship
MARBI – Machine Readable form of Bibliographic Information
MARC – MAchine Readable Cataloging
MARC 21 – Machine Readable Catalogue 21 Century
MARVEL – MAnaging Resources for Varsity Libraries (University of Georgia Libraries)
MCI – Medical Council of India
MEDLARS – Medical Literature Analysis and Retrieval System
MEDLINE – MEDLARS Online
MERLIN – Machine Readable Library Information (UK)
METADEX – Metals Abstracts Index
MFHD – MARC Format for Holdings Data
MINABB – Minimum Abbreviation (applied for titles of periodicals – USA)
MIS – Management Information System; Master of Information Science
MISS – Medical Information Science Section (USA)
MLA – Medical Library Association (USA); Modern Language Association; Modern Library Association; Music Library Association
MLAI – Medical Libraries Association of India
MLC – Michigan Library Consortium (Wayne State University, Detroit)
MLIS – Master of Library and Information Science
MLS – Master of Library Science
MOL – Mail Order Library
MS – Manuscript
MULISAA – Madras University Library and Information Science Alumni Association
MUMS – Multiple Use ‘MARC’ System (Library of Congress)
NACILA – National Council of Indian Library Associations
NACL – National Advisory Commission on Libraries (USA)
NAL – National Agricultural Library (Maryland, USA)
NAR – Name Authority Record
NASIG – North American Serials Interest Group
NASSDOC– National Social Science Documentation Center
NATIS – National Information System
NBA – National Braille Association
NBT – National Book Trust
NCL – National Central Library
NCST – National Commission on Science and Technology
NCTE – National Council for Teachers Education
ND – No Date
NDCMC – National Documentation Centre on the Mass Communication
NIC – National Industrial Classification; National Informatics Centre (Delhi); National Information Centre (Delhi)
NICFOS – National Information Centre for Food Science and Technology (Mysore)
NICLAI – National Information Centre for Leather and Allied Industries (Madras)
NIFOR – National Information Service (Poona)
NILA – North India Library Association
NISC – National Information Services Corporation
NISO – National Information Standards Organization (USA)
NISS – National Social Science Information System (India)
NIT – National Index of Translations (INSDOC)
NLA – Nevada Library Association
NLM – National Library of Medicine (USA)
NML – National Medical Library (Delhi)
NN/LM – National Network of Libraries of Medicine
NPAC – National Programme for Acquisition and Cataloguing
NRCST – National Referral Centre for Science and Technology (Library of Congress)
NSL – National Science Library (INSDOC)
NTBL – Nuffield Talking Book Library (For the Blind in UK) renamed as British Talking Book Service for the Blind
NTC – National Translation Centre (Chicago)
NTIS – National Technical Information Service (USA)
NUC – National Union Catalog
NYPL – New York Public Library
