l
- Lag
- LAMP
- LAN
- Local Area Network
- Laptop
- Laser Printer
- Latency
- Lazy Loading
- LCD
- Liquid Crystal Display
- LDAP
- Lightweight Directory Access Protocol
- Lead
- Leaderboard
- Leading
- Leaf
- LED
- Light-Emitting Diode
- Leet
- Left-Click
- Leopard
- LFN
- Long Filename
- LIFO
- Last In First Out
- Lightning
- Link
- Linux
- Lion
- LISTSERV
- Live Streaming
- Load Balancing
- Localhost
- Log File
- log
- Log On
- Logic Error
- Logic Gate
- Login
- Long
- Loop
- Lossless
- Lossy
- Low-Level Language
- LPI
- Lines Per Inch
- LTE
- Long Term Evolution
- Lua
- LUN
- Logical Unit Number