| Abbreviation | Definition |
|---|---|
| LC | Logical Channel |
| LC | Lower Cassette |
| LCCE | L2TP Control Connection Endpoint |
| LCD | Liquid Crystal Display |
| LCD | Local Change Directory |
| LCD | Local Current Directory |
| LCL | Lossless Codec Library |
| LCN | Logical Channel Numbering |
| LCP | Linkage Control Program |
| LCR | Least Cost Routing |
| LCS | Live Communications Server |
| LCWN | LiveCache Wireless Network |
| LD | Limited Deployment |
| LDA | Local Delivery Agent |
| LDA | Local Director Acceleration |
| LDIF | LDAP Data Interchange Format ( RFC 2849) |
| LDNA | Linkage Disequilibrium Network Analysis |
| LDP | Label Distribution Protocol |
| LDT | Lightning Data Transport |
| LE | Lance Ethernet |