L1 - Level 1 
L10N - Localization 
L2 - Level 2 
L2F - Layer 2 Forwarding 
L2FP - Layer 2 forwarding protocol 
L2TP - Layer 2 Tunneling Protocol 
L3 - Level 3 
LA - Licensing Administration 
La - Limited Availability 
LA - location area 
LAA - Locally Administered Address 
LAB - Laboratory Data Model 
LAC - Lotus Authorized Consultants 
LACP - Link Aggregation Control Protoc… 
LADSPA - Linux Audio Developer's Simpl… 
LADT - Lexikon der Abkuerzungen in der… 
LADT - Local Access Data Transport 
LAE - Linux Application Environment 
LAEC - Lotus Authorized Education Cent… 
LAG - Logical Address Group 
LAM - Local Area Multicomputer 
LAMP - Linux Apache MySQL 
LAMP - Linux, Apache, MySQL, PHP 
LAMPP - Linux, Apache, MySQL, PHP and… 
LAN - Local Area Network 
LANANA - Linux Assigned Names And Numb… 
LANCE - LAN Controller for Ethernet 
LANE - Local Area Network Emulation 
lang - language 
LANL - Los Alamos National Laboratory